Question

a. Find the surface area of the cube.
b. Find the volume of the cube.

Answer 1

Surface Area of a Cube = 6 x (Area of one side)
Volume of a Cube = (Length of One Side)^3

Just apply that, you already know the length of one side (given in your picture).

Answer 2

could you set up the problem for me with better understanding?

Answer 3

I'll set up the Area for you.

A side is given as 4x-5. Then

Area = 6 * (Area of One Side)
Area = 6 * (4x-5) * (4x-5)
or
Area = 6 * (4x-5)^2