If you run 15 laps per practice, how many practices will it take you to run 30 laps? CAN YOU GUYS PLEASE HELP

1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

Find the slope of the line that contains the following points. r(-2, 4), s(6, -2)