the length of each side of a square is 3 in. more than than the length of each side of a smaller square. the sum of the areas of the squares is 117 in^2. find the lengths of the sides of the two squares

Answer this question only if you know the 30 points and

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.

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}