Esteban is preparing to start an ice sculpture. He has a block of ice that is 3 feet by 4 feet by 5 feet. Before he starts, he wants to reduce the volume of the ice by shaving off the same amount from the length, the width, and the height.
a. Write a polynomial function to model the situation.
b. Graph the function.
c. He wants to reduce the volume of the ice to 3 / 5 of the original volume. Write an equation to model the situation.
d. How much should he take from each dimension?