If the shaded cross sections of the solids have the same area, which of the following corresponds to the value of a: the side length of the base of the square prism?

answer choices: 2, 4, √2pi, 4√pi

i'm having trouble with this problem. : )

Plz me i need i will give a brain

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Joel wants to buy a new tablet computer fram a store having a 20% off sale on all tablets. the tablet he wants has an original cost of $190. he also wants to make sure he has enough money to pay the 5% sales tax. part one joel uses the incorect expression 0.95(190)(0.8) to calculate that the tablet will cost him a total of $144.40. describe his error and write the correct expression part two how much will joel pay for the tablet show your work if you answer this question correctly you will receive a prize of 99 points good luck