https://padlet.com/danchu670/g8aw4dn0adzw Made with charm en-us 2018-12-08 03:10:58 UTC 2018-12-08 03:12:17 UTC hello@padlet.com danchu670 https://padlet.com/danchu670/g8aw4dn0adzw/wish/312458436 I learned that both divison and mulitplication are needed for the geometric sequence ]]> 2018-12-08 03:11:32 UTC https://padlet.com/danchu670/g8aw4dn0adzw/wish/312458436