If each rectangle measures 96 inches how many 1x4x8 will it take to this wall of windows

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.

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

8. kelly wants to buy a magazine that is $25. later the magazine was marked up an additional 20%. what is the new price?