Hi there!
To find the volume of a cube, we must multiply its length, width and height. In a formula:

We can now plug in the data from the question into the formula. In this case it doesn't matter what exactly the width or length or height is [I mean their position in the formula], since we're multiplying.

Hence, the volume of the cube is 33 cm^3. In words: thirty-three cubic centimetres.
~ Hope this helps you!