I need to write an expression to represent the volume of this shape

Jude is making cement for a driveway. the instructions show the amount of each ingredient to make 1 batch of cement. complete each statement to adjust the ingredients for each new situation if jude uses these instructions.

The graph of a curve that passes the vertical line test is a:

Find the root(s) of f (x) = (x- 6)2(x + 2)2.