Answer:
C. x = 1/2
Explanation:
To find x, simply take the cube root of the cube's given volume. with a volume of 1/8 cubic centimetres, (this is an assumption, as the question expresses the volume in square centimetres, which is not a valid unite of volume; presumably that's a typo), the side length will be:
√(1/8)
= √1 / √8
= 1 / 2
So x is equal to 1/2 of a centimetre.