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When you calculate tax, multiply the amount by the decimal form of the percent, and you get the answer.

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An odd number of negative integers produces a product with a negative answer.

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Halfway temperatures is:
1. Distance/2
2. Add that number to the smallest integer.

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Sum of the Interior Angle is n-2(180)
Sum of Exterior Angles is always 360 degrees.

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If you are finding an average temperature, and it drops, you need to use a negative sign or use the word drop.

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Subtracting a negative number is the same as adding a positive.

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New perimeter is the same of the scale factor.
New area is the scale factor squared.

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Writing rules!
Times wider and taller is (2x, 8y)
Moving is
x +... to the right
x - ... to the left
y + ... up

y - ...down

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y = 15 x
15 is the coefficient, unit rate, constant of proportionality, slope and rate of change.

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Distance is from one of the numbers to zero, and add to that, the other numbers distance to zero.

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Additive inverse means opposite sign.

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When you calculate a new hourly wage, you have to add it back to what the hourly wage was.

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When you write an expression, do not make it into an equation.

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If you deposit into an account, you add. If you withdraw, you subtract.

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Practice changing fractions to decimals. Remember to end the decimal and round correctly.