Answer:
well you see there is go.ogle
im sorry I want to help but it wouldnt load :'(
Answer:
The size of the cardboard should be 
Step-by-step explanation:
The diagram for this question is shown on the first uploaded image
The volume of the box is 
The length and the Width of the card is
L = W = Z
From the question we are told that 7 in squares were cut from each corner
So the length and the width of the box would be
L = W = (Z - 7)
And the height would be H = 7 in
Mathematically the volume of the box can be represented as

So the Volume would be
Substituting values


=> 

I don’t understand what your asking are you trying to find the cube of a certain number?
The answer is B 38 for g.h and 5