Extra Credit: Write an expression to represent "8 less than twice the square of a number, n. PLEASE HELP I NEED THIS EXTRA CREDIT :(

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.

Why do interests rates on loans to be lower in a weak economy than in a strong one

17 in long 1.3 ft wide and 8in high what is the volume