Answer:
Part A) The length, the width and the height have the same value equal to

Part B)

Explanation:
we know that
The volume of a cube is equal to

where
x is the side length of the cube
Remember that in a cube the length, the width and the height have the same value
so
in this problem we have

substitute

![x=\sqrt[3]{27}=3\ ft](https://img.qammunity.org/2018/formulas/mathematics/high-school/kc89ihrnm8g85zjt50lm5jkuhta4wo3bto.png)