# data[].attributes.body
Flash (the fast's mile time)
Hicham El Guerrouj 1999
time: 3:43.13
Jim Ryun 1967
time 3:51.1
(1967,3:5111) or 1967,231
180
-51=231
(1999,3:4313) or 1999,223
180
-43=137

# data[].attributes.body
U.S Population
Million = M
-------------------= / or division sign
318.9M People in 2014
242.2M People in 1987
318.9M-242M
-------------------
2014 - 1987

or

318.9M - 242.2M/ 2014/198

https://www.google.com/publicdata/explore?ds=kf7tgg1uo9ude_&met_y=population&idim=country:US&hl=en&dl=en

# data[].attributes.body
Number of shark attacks per year

year     shark attacks
(2011=29)
(2012=61)
(2013=55)
(2014=62)

2014-2011=3
62-55=7
7 shark attacks every 3 years

# data[].attributes.body
Average salaries artist are paid in 2016: $47,00
average salaries artist were paid in 1999:
$36,583
2016 (X1)salary, $47,000 (Y1)
1999 (X2) salary, $36,583 (Y2)

$36,583- $47,000= $10,417
1999- 2016= 2016
so its $10,417/17 years
so its been increasing

# data[].attributes.body
Number of players registered with USA Hockey per year

1990 - 195,125 players
2015 - 542,583 players

542583-195125=347458/ 2015-1990=25

Every year, the number of players goes up by 13,898

http://www.usahockey.com/page/show/839306-membership-statistics

# data[].attributes.body
Price per 10 carat of diamonds in U.S. per year
Year                         Price
1960                        2,700
2015                        29,650

29,650  -  2,700       26,950
2015-1960         =     55
26,950 dollars per every 55 years.
26,950/55 = 490
Price goes up 490$ per year

# data[].attributes.body
Florida high school graduate rate

(2008-2004)
(59.3%,62.7%)

62.7%-59.3%/2008-2004
=3.4%/4
=.85% per 1 yr
The rate of change for the number of graduates increased .85% per year.

chrome-extension://mloajfnmjckfjbeeofcdaecbelnblden/http://www.fldoe.org/core/fileparse.php/7584/urlt/GraduationRates1415Final.pdf

# data[].attributes.body
Fastest 100 Butterfly times from 1957 to 2009
(1957, 1:03.4) (2009, 49.82)
49.82-63.4/2009-1957 = -13.58/52
-13.58 seconds/52 years
The rate of change shows that -13.58 seconds have been dropped in the 100 meter butterfly in 52 years.
https://en.wikipedia.org/wiki/World_record_progression_100_metres_butterfly

# data[].attributes.body
Hardest shots scored in soccer

1994, 84 mph
2014, 131 mph

131-84 = 47 mph
2014-1994 = years

47/20 = 2.35 mph

The rate of change is going up by 2.35 mph per year.
https://www.reference.com/sports-active-lifestyle/fastest-kicked-soccer-ball-203b0d5929116e24

http://www.thesportster.com/soccer/top-25-soccer-players-with-the-hardest-shots/

# data[].attributes.body
Airplane Ticket Cost from 1990 to 2010.
Price per mile          Year
$0.25                          1990
$0.15                          2010

2010 - 1990 = 20
0.15 - 0.25= -0.10
Every year the price of airline tickets is decreasing by $0.05 per year

http://www.theatlantic.com/business/archive/2013/02/how-airline-ticket-prices-fell-50-in-30-years-and-why-nobody-noticed/273506/

# data[].attributes.body
How much a Dairy Queen ice cream cone's price increases every year.
(1940, .10) (2016, 1.99)
1.99-0.10/ 2016-1940
1.89/76
$0.025
Every year the price of a cone goes up $0.025.

# data[].attributes.attachment_link.title
About DQ - History, Community & Information about Dairy Queen

# data[].attributes.attachment_link.description
Have you ever wanted to learn about Dairy Queen's history, community involvement or the world record that we have set? Find that and more on this page.

# data[].attributes.body
Amount of Three Pointers Michael Jordan Made Per Year

Three pointers made in 1984 - 9

Three pointers made in 1996 - 111

111-9=102
1996-1984=12

Michael Jordan increased 102 three pointers over 12 years.

http://www.basketball-reference.com/players/j/jordami01.html

# data[].attributes.body
Cost of Movie Prices Throughout the Years!
(1924, .25) (2009, $7. 50)
(7. 50-. 25)/ (2009-1924)
$7. 25/85 years=$0. 08/1 year
The price of movie tickets increased by $7. 25 over an 85 year span. So each year the price of movie tickets increased by $0.08 each year from 1924 to 2009

www. Davemanuel.Com/the-cost-of-a-movie-ticket-throughout-the-years

# data[].attributes.body
cost of an ice cream cone in 1980 to 2002
cost in (1980,0.05)
cost in (2002,1.75)

2002-1980=22/1.75-0.05=1.7
1.7$/22 years
From 1980 to 2002 the cost went up 1.7$ in 22 years
https://sites.google.com/a/underwoodschools.org/when-we-are-40/ashley

# data[].attributes.body
NCAA college basketball tournament games from 1980 to 2013
year 1980 cost $9.69
year 2000 coast $40.14
year 2013 cost 89.81
(1980, $9.69) (2013, $89.81)
$89.81-$9.69=$80.12
2013-1980=33
$80.12 cost/ 33 years
80.12 dived by 33 = $2.42
$2.42 cost/ 1 year
https://www.statista.com/statistics/287449/ncaa-basketball-tournament-average-ticket-price/
Through out the 33 year difference from 1971 to 2013 the cost of NCAA college basketball tournament games have gone up $80.12. Every year sense 1971 the cost of the ticket goes up by about $2.42

# data[].attributes.body
The fastest 1 mile time from 1865-1999.

Time in 1865: 4:36.5
Time in 1999: 3:43.13

The first coordinate is (1865,276)  and I used the time 4:36.5 and I multiplied 4*60 and added 36 and got 276 seconds.
The second coordinate is (1999,223) and I did the same thing as the first coordinate. I used the time 3:43.13 and I multiplied 3*60 and added 43 and got 223 seconds.

The fastest mile time increased a minute faster from 1865-1999.

http://www.maa.org/sites/default/files/images/upload_library/3/osslets/100multiParameterAnimation/mile_record_scatter.html

# data[].attributes.body
World Record Mile Time
(1980,3.48) , (1999,3.43)
(1999-1980)/(3.43-3.48)
19/-0.05
The fastest mile time goes down by 0.05 seconds every 19 years.

# data[].attributes.attachment_link.description
Notice this is a somewhat different form than the usual form for linear functions. The parameter m still determines the slope of the function but the parameter b now determines the world record in the year 1860. Use the vertical controls to change the parameters so that the linear function provides a rough description of the data.

# data[].attributes.body
Fire rate of m1919 to mg42
M1919- 400 rounds per min made in 1919
MG42- 1200 rounds per min Made in 1942

https://en.wikipedia.org/wiki/M1919_Browning_machine_gun

https://en.wikipedia.org/wiki/MG_42

1200-400=800
1942-1919=23

800/23=35 rounds per min increase over a year

# data[].attributes.body
Michael Phelps 200m butterfly time over the years...

Time in 2000 Olympics: 1.55.35 seconds
Time in 2016 Olympics: 1.51.51 seconds

Two coordinates: (2000, 1.55.35) (2016, 1.51.51)

Work: 1.51.51-1.55.35=-0.3.16, 2016-2000=16

Rate of change: -3 seconds per year

Michael Phelps 200m butterfly decreases by about 3 seconds every year.

Website for time in 2000 https://www.youtube.com/watch?v=xvwL28OYw_U
Website for time in 2016 http://www.nbcolympics.com/news/michael-phelps-bests-rest-200m-butterfly-earns-20th-olympic-gold

# data[].attributes.body
Concert ticket prices
(1976, 43.98)
(2014, 225)

225-43.98= $186.02
2014-1976= 38 years

$186.02/38 years

The prices of concert tickets has gone up by $186.02 in the past 38 years.

http://www.forbes.com/sites/maurybrown/2014/07/23/have-concerts-and-sporting-events-become-too-expensive-for-the-average-fan/#79e58b3914af

# data[].attributes.body
How many hot dogs can Joey Chestnut eat in ten minutes?

Joey Chestnut ate 32 hot dogs in 2005 over 10 years later, he has eaten 30 more hot dogs so in 2015 he ate 62 hot dogs.

(2005, 32)
(2015, 62)

2005-32 dogs
2015-62 dogs

2015-2005=10
62-32=30

he ate 3 more hot dogs every 1 year.
http://www.edubilla.com/sport/competitive-eating/players/joey-chestnut/

# data[].attributes.body
Soccer goals scored by Messi
2011, 73
2012, 91

2012 - 2011 = 1 year
91 - 73 = 18 goals

18 goals per every 1 year

Every one year 18 more goals are scored by Messi.

https://www.google.com/search?q=how+many+goals+did+messi+score+in+2012&rlz=1CADEAC_enUS708US708&oq=how+many+&aqs=chrome.0.69i59l3j69i57j0l2.1640j0j9&sourceid=chrome&ie=UTF-8&safe=active&ssui=on

# data[].attributes.body
Mens high jump

(2,1912) (2.14,1956)

1956-1912=44

2.14-2= .14

44/.14= .00318

The rate of change is going up by .00318 meters per year.

# data[].attributes.body
fastest 200 freestyle

(1:37.39,2014)

(2:31.6,1908)

(1:37.39-2:31.6)/(2014-1908)

-94 seconds/106 years

-.009 seconds/1 year

it goes down about .009 seconds a year

# data[].attributes.body
100-Meter Dash World Records

(1972, 10.07 seconds)

(2014, 9.77 seconds)

(9.77 - 10.07)/ (2014 - 1972)

-0.30 seconds/ 42 years

-.30 and 42 both divided by 6: -0.05 seconds/7 years.

Final answer: -0.05 seconds/7 years.

The seconds decreased in 0.05 seconds for 7 years.

# data[].attributes.attachment_link.readable_text
The 100 metres, or 100-meter dash, is a sprint race in track and field competitions. The shortest common outdoor running distance, the 100-meter (109.36 yd) dash is one of the most popular and prestigious events in the sport of athletics. It has been contested at the Summer Olympics since 1896 for men and since 1928 for women. The inaugural World Championships were in 1983.

Women's 100 m Final - 2015 World Championships, won by Jamaican sprinter Shelly-Ann Fraser-Pryce.

The reigning 100 m Olympic or world champion is often named "the fastest man or woman in the world". Noah Lyles and Sha'Carri Richardson are the world champions; Marcell Jacobs and Elaine Thompson-Herah are the men's and women's Olympic champions.

On an outdoor 400-metre running track, the 100 m is held on the home straight, with the start usually being set on an extension to make it a straight-line race. There are three instructions given to the runners immediately before and at the beginning of the race: "on your marks", "set", and the firing of the starter's pistol. The runners move to the starting blocks when they hear the 'on your marks' instruction. The following instruction, to adopt the 'set' position, allows them to adopt a more efficient starting posture and isometrically preload their muscles: this will help them to start faster. A race-official then fires the starter's pistol to signal the race beginning and the sprinters stride forwards from the blocks. Sprinters typically reach top speed after somewhere between 50 and 60 m. Their speed then slows towards the finish line.

The 10-second barrier has historically been a barometer of fast men's performances, while the best female sprinters take eleven seconds or less to complete the race. The current men's world record is 9.58 seconds, set by Jamaica's Usain Bolt in 2009, while the women's world record is 10.49 seconds set by American Florence Griffith-Joyner in 1988.

Male sprinters await the starter's instructions

At the start, some athletes play psychological games such as trying to be last to the starting blocks.

At high level meets, the time between the gun and first kick against the starting block is measured electronically, via sensors built in the gun and the blocks. A reaction time less than 0.1 s is considered a false start. The 0.2-second interval accounts for the sum of the time it takes for the sound of the starter's pistol to reach the runners' ears, and the time they take to react to it.

For many years a sprinter was disqualified if responsible for two false starts individually. However, this rule allowed some major races to be restarted so many times that the sprinters started to lose focus. The next iteration of the rule, introduced in February 2003, meant that one false start was allowed among the field, but anyone responsible for a subsequent false start was disqualified.

This rule led to some sprinters deliberately false-starting to gain a psychological advantage: an individual with a slower reaction time might false-start, forcing the faster starters to wait and be sure of hearing the gun for the subsequent start, thereby losing some of their advantage. To avoid such abuse and to improve spectator enjoyment, the IAAF implemented a further change in the 2010 season - a false starting athlete now receives immediate disqualification. This proposal was met with objections when first raised in 2005, on the grounds that it would not leave any room for innocent mistakes. Justin Gatlin commented, "Just a flinch or a leg cramp could cost you a year's worth of work." The rule had a dramatic impact at the 2011 World Championships, when current world record holder Usain Bolt was disqualified.

Runners usually reach their top speed just past the halfway point of the race and progressively decelerate to the finish. Maintaining that top speed for as long as possible is a primary focus of training for the 100 m. Pacing and running tactics do not play a significant role in the 100 m, as success in the event depends more on pure athletic qualities and technique.

The winner, by IAAF Competition Rules, is determined by the first athlete with their torso (not including limbs, head, or neck) over the nearer edge of the finish line. There is therefore no requirement for the entire body to cross the finish line. When the placing of the athletes is not obvious, a photo finish is used to distinguish which runner was first to cross the line.

Climatic conditions, in particular air resistance, can affect performances in the 100 m. A strong head wind is very detrimental to performance, while a tail wind can improve performances significantly. For this reason, a maximum tail wind of 2.0 metres per second (4.5 mph) is allowed for a 100 m performance to be considered eligible for records, or "wind legal".

Furthermore, sprint athletes perform a better run at high altitudes because of the thinner air, which provides less air resistance. In theory, the thinner air would also make breathing slightly more difficult (due to the partial pressure of oxygen being lower), but this difference is negligible for sprint distances where all the oxygen needed for the short dash is already in the muscles and bloodstream when the race starts. While there are no limitations on altitude, performances made at altitudes greater than 1000 m above sea level are marked with an "A".

The 10-second mark had been widely considered a barrier for the 100 metres in men's sprinting. The first man to break the 10 second barrier with automatic timing was Jim Hines at the 1968 Summer Olympics. Since then, over 190 sprinters have run faster than 10 seconds.

Major 100 m races, such as at the Olympic Games, attract much attention, particularly when the world record is thought to be within reach.

The men's world record has been improved upon twelve times since electronic timing became mandatory in 1977. The current men's world record of 9.58 s is held by Usain Bolt of Jamaica, set at the 2009 World Athletics Championships final in Berlin, Germany on 16 August 2009, breaking his own previous world record by 0.11 s. The current women's world record of 10.49 s was set by Florence Griffith-Joyner of the US, at the 1988 United States Olympic Trials in Indianapolis, Indiana, on 16 July 1988 breaking Evelyn Ashford's four-year-old world record by .27 seconds. The extraordinary nature of this result and those of several other sprinters in this race raised the possibility of a technical malfunction with the wind gauge which read at 0.0 m/s- a reading which was at complete odds to the windy conditions on the day with high wind speeds being recorded in all other sprints before and after this race as well as the parallel long jump runway at the time of the Griffith-Joyner performance. All scientific studies commissioned by the IAAF and independent organisations since have confirmed there was certainly an illegal tailwind of between 5 m/s - 7 m/s at the time. This should have annulled the legality of this result, although the IAAF has chosen not to take this course of action. The legitimate next best wind legal performance would therefore be Elaine Thompson-Herah's 10.54 second clocking in 2021 at the Prefontaine Classic. Griffith-Joyner's next best legal performance of 10.61 from 1988, would have her third on the all-time list behind Thompson-Herah and Shelly-Ann Fraser-Pryce (10.60).

Some records have been marred by prohibited drug use - in particular, the scandal at the 1988 Summer Olympics when the winner, Canadian Ben Johnson was stripped of his medal and world record.

Jim Hines, Ronnie Ray Smith and Charles Greene were the first to break the 10-second barrier in the 100 m, all on 20 June 1968, the Night of Speed. Hines also recorded the first legal electronically timed sub-10 second 100 m in winning the 100 metres at the 1968 Olympics. Bob Hayes ran a wind-assisted 9.91 seconds at the 1964 Olympics.

Usain Bolt breaking the world and Olympic records at the 2008 Beijing Olympics

Any performance with a following wind of more than 2.0 metres per second is not counted for record purposes. Below is a list of wind-assisted times (equal or superior to 9.80). Only times that are superior to legal bests are shown:

Justin Gatlin ran 9.45 (+20 m/s) in 2011 on the Japanese TV show Kasupe! assisted by wind machines blowing at speeds over 25 metres per second.[56] Due to the nature of the performance, World Athletics has not recognized it as a legitimate clocking.

Tyson Gay (USA) ran 9.68 (+4.1 m/s) during the U.S. Olympic Trials in Eugene, Oregon on 29 June 2008.[57]

Obadele Thompson (BAR) ran 9.69 (+5.7 m/s) at high altitude in El Paso, Texas on 13 April 1996, which stood as the fastest ever 100 metres time for 12 years.

Andre De Grasse (CAN) ran 9.69 (+4.8 m/s) during the Diamond League in Stockholm on 18 June 2017,[58] 9.74 (+2.9 m/s) during the Diamond League in Eugene, Oregon on 21 August 2021, and 9.75 (+2.7 m/s) during the NCAA Outdoor Track and Field Championships in Eugene, Oregon on 12 June 2015.

Richard Thompson (TTO) ran 9.74 (+5.0 m/s) in Clermont, Florida on 31 May 2014.

Darvis Patton (USA) ran 9.75 (+4.3 m/s) in Austin, Texas on 30 March 2013.

Trayvon Bromell (USA) ran 9.75 (+2.1 m/s) in Jacksonville, Florida on 30 April 2022, 9.76 (+3.7 m/s) in Eugene, Oregon on 26 June 2015, and 9.77 (+4.2 m/s) in Lubbock, Texas on 18 May 2014.

Churandy Martina (AHO) ran 9.76 (+6.1 m/s) at high altitude in El Paso, Texas on 13 May 2006.

Maurice Greene (USA) ran 9.78 (+3.7 m/s) in Eugene, Oregon on 31 May 2004.

Ronnie Baker (USA) ran 9.78 (+2.4 m/s) during the Diamond League in Eugene, Oregon on 26 May 2018.

Fred Kerley (USA) ran 9.78 (+2.9 m/s) during the Diamond League in Eugene, Oregon on 21 August 2021.

Andre Cason (USA) ran 9.79 (+5.3 m/s) and (+4.5 m/s) in Eugene, Oregon on 16 June 1993.

Favour Ashe (NGR) ran 9.79 (+3.0 m/s) in Baton Rouge, Louisiana on 30 April 2022.

Walter Dix (USA) ran 9.80 (+4.1 m/s) during the U.S. Olympic Trials in Eugene, Oregon on 29 June 2008.

Terrance Laird (USA) ran 9.80 (+3.2 m/s) in College Station, Texas on 15 May 2021.[59]

Marvin Bracy (USA) ran 9.80 (+2.9 m/s) in Montverde, Florida on 4 June 2022.

Noah Lyles (USA) ran 9.80 (+4.4 m/s) in Devonshire, Bermuda on 21 May 2023.

Tim Montgomery ran 9.78 (+2.0 m/s) in Paris on 14 September 2002, which was at the time ratified as a world record.[60] However, the record was rescinded in December 2005 following his indictment in the BALCO scandal on drug use and drug trafficking charges.[61] The time had stood as the world record until Asafa Powell first ran 9.77.[62]

Ben Johnson ran 9.79 (+1.1 m/s) at the Olympics in Seoul on 24 September 1988, but he was disqualified after he tested positive for stanozolol after the race. He subsequently admitted to drug use between 1981 and 1988, and his time of 9.83 (+1.0 m/s) at the World Championships in Rome on 30 August 1987 was rescinded.

Florence Griffith-Joyner of the U.S. is the world record holder.

Elaine Thompson-Herah of Jamaica, the fastest woman alive and the second fastest woman of all time.

Shelly-Ann Fraser-Pryce of Jamaica, the third fastest woman in history.

Any performance with a following wind of more than 2.0 metres per second is not counted for record purposes. Below is a list of wind-assisted times (equal or superior to 10.75). Only times that are superior to legal bests are shown:

Notes:

Trayvon Bromell recorded the fastest wind-assisted (+4.2 m/s) time for a junior or age-18 athlete of 9.77 seconds on 18 May 2014 (age 18 years, 312 days).

Yoshihide Kiryu's time of 10.01 seconds matched the junior world record set by Darrel Brown and Jeff Demps, but was not ratified because of the type of wind gauge used.

British sprinter Mark Lewis-Francis recorded a time of 9.97 seconds on 4 August 2001 (age 18 years, 334 days), but the wind gauge malfunctioned.

Nigerian sprinter Davidson Ezinwa recorded a time of 10.05 seconds on 4 January 1990 (age 18 years, 43 days), but with no wind gauge.

Below is a list of all other legal times equal or superior to 10.06:

Briana Williams ran 10.94 s at the Jamaican Championships on 21 June 2019, which would have made her the fourth fastest junior female of all time. However, she tested positive for the banned diuretic hydrochlorothiazide during the competition. She was determined to be not at fault and received no period of ineligibility to compete, but her results from the Jamaican Championships were nullified.

Below is a list of all other legal times equal or superior to 11.10:

Below is a list of all other legal times equal or superior to 10.20:

Briana Williams ran 10.94 s at the Jamaican Championships on 21 June 2019, which would have been a world under-18 best time. However, she tested positive for the banned diuretic hydrochlorothiazide during the competition. She was determined to be not at fault and received no period of ineligibility to compete, but her results from the Jamaican Championships were nullified.

Below is a list of all other legal times equal or superior to 11.24:

The best performances by 5- to 19-year-old athletes

Jason Smyth (in lane five) breaking the men's T13 world record at the 2012 Paralympic Games in London.

Medalists by country

# data[].attributes.attachment_link.description
The 100 metres, or 100-meter dash, is a sprint race in track and field competitions. The shortest common outdoor running distance, the 100-meter (109.36 yd) dash is one of the most popular and prestigious events in the sport of athletics. It has been contested at the Summer Olympics since 1896 for men and since 1928 for women.

# data[].attributes.body
How the gas prices go up or down 2003,1.34

2006,3.26

2009,2.35

3.26-1.32/2006-2003=.6466667

the gas prices go .6466667 dollars every three years

# data[].attributes.body
the gasoline price in 1920 was 20 cents a galon http://www.energytrendsinsider.com/2012/02/27/how-high-have-gas-prices-risen-over-the-years/

the gasoline prices in 2015 are 2.60$ http://www.eia.gov/forecasts/steo/

(1920, 20 cents per gallon)

(2015, 2.64$ per gallon)

2.44$/95 years

3 cents more every year for a gallon of gasoline

# data[].attributes.body
McDonalds Hamburger Prices

(1990,.59)

(2013,3.79)

3.79-.59/2013-1990

Simplifies to 3.2/23.

The price of a hamburger at McDonald's goes up .14 cents a year.

http://www.fastfoodmenuprices.com/mcdonalds-prices/

https://answers.yahoo.com/question/index?qid=20100508143003AAHphp7

# data[].attributes.body
Cost of a ticket to a Chicago White Sox game

(1950=1.75)

(19973=3.00)

(1991=10.28)

(2003=22.51)

22.51-10.28

2003-1991 equals 12.23/12=1.02

The cost of a ticket goes us $1.02 each year

# data[].attributes.body
Takeru Kobayashi ate 69 hot dogs in 2014. Jason schechter 14 hot dogs in 1972

(2014,69) (1972,14)

2014-1972=42

69-14=53

42 divided by 53 = .76 From the year 1972-2014 the record for the most hot dog's went up by 20 hot dog

# data[].attributes.body
The number of hotdogs eaten between 1994 and 2001

(1994, 20)

(2001, 50)

50-20=30

2001-1994=7

30 divided by 7 is about 4.3

# data[].attributes.body
cost of a balance beam

2015- $3035

1980- $995

995-3035/1980-2015= -2040/-35

reduces to 58.2/1

The cost of a balance beam goes up $58.2 every year

http://midwestgymsupply.com/11-balance-beam

# data[].attributes.body
World record for staying awake without sleep

1964: 264 hours

2010: 968 hours

704/46= 15.30 hours per year

http://www.dailymail.co.uk/news/article-1326067/Man-claims-set-world-record-sleeping-968-hours.html

# data[].attributes.body
Annual Gas Prices

(1998, 1.03) , (2011,3.53)

3.53-1.03

--------------- = .192

2011-1998

gas prices go up by .192 dollars a year.

# data[].attributes.body
The original world record for the most pirouettes in a row is 36 and was achieved by Alicia Clifton in 2005. It was just passed in 2013 by Sofia Lucia. She was able to do 54 pirouettes in a row. The rate of change is 2.25 pirouettes per year.

54-36=18

2013-2005=8

18/8=2.25 rate of change

The amount of pirouettes goes up by 2.25 every year

# data[].attributes.attachment_link.title
Most consecutive pirouettes: Sophia Lucia smash Guinness world record (VIDEO)

# data[].attributes.attachment_link.description
POWAY, CA, USA -- During an event sponsored by Kids Artistic Revue and California Kisses and held at her home studio, San Diego Dance Center, Dance Moms TV Star & 10 year old Dance Prodigy, Sophia Lucia, managed 47 pirouettes on the first attempt, 48 on the second and a whopping 55 pirouettes on the third, final attempt, setting the new world record for the Most consecutive pirouettes - contemporary dance, according to the World Record Academy: www.worldrecordacademy.com/.

# data[].attributes.body
The highest score received by a colorguard.

WGI.org

Year Score

1980- 93.10 Holley Central HS

2015- 97.65 Carmel HS

97.65-93.10 = 4.55

2015-1980= 35

4.55/35 =.13

The rate of change is the score increased about .13 points per year.

# data[].attributes.body
Burger King prices

(1957, .37)

(2014, $3.27)

3.27-.37/2014-1957

simplified 2.90/57

Burger king prices went up by .20 cents a year

# data[].attributes.body
Babe Ruth's annual salaries:

($52,000, 1922,)

($80,000, 1930)

1930-1922=8

80,000-52,000=28,000

8/28,000=3,500

Babe Ruths, salary increased by 3,500 dollars per year.

# data[].attributes.body
Hardest hockey slap shot.

1990= 96 mph

2015= 108.5 mph

108.5-96= 12.5

2015-1990=25

0.5 mph faster per year

# data[].attributes.body
Marathon World Records 26 miles

(1908, 2:55 hours or 175 minutes)

(2014, 2:03 hours or 123 minutes)

(175-123)/(1908-2014)

52 min/-106 years

-.49 minutes per year

The time goes down by about .49 minutes per year. Or about the record goes down by 30 seconds per year.

# data[].attributes.attachment_link.title
Marathon world record progression - Wikipedia

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Marathon races were first held in 1896, but the distance was not standardized by the International Amateur Athletic Federation (IAAF) until 1921. The actual distance for pre-1921 races frequently varied slightly from the present figure of 42.195 km (26 miles 385 yards).