What is n if 7>5+n/-7

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.

Which expression is equivalent to the expression shown?

What adds to be the bottom number but also multiplies to be the top number with 8 on the bottom and 15 on top