A 40-inch by 40-inch piece of marble that is 72 inches long is cut lengthwise along its diagonal. Find the perimeter and area of the cross section formed by the cut. Round each answer to the nearest whole number.

I know the answer is 4073, but idk how they got it :(

Ben wants to play a carnival game that costs $2. in his pocket he has 5 red tickets worth 35 cents each, and 15 blue tickets worth 10 cents each. which of the following systems of inequalities correctly represents the constraints on the variables in this problem? let represent the red tickets and b represent the blue tickets.

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.

Pat listed all the numbers that have 15 as a multiple write the numbers in pats list