If the side length of the cube is 5 inches, then the volume is 125 ${\text{in}}^3$.

If the volume of the cube is 5 ${\text{in}}^3$, then the side length is 125 inches.

If the side length of the cube is 5 ${\text{in}}^3$, then the volume is 125 inches.

If the volume of the cube is 125 inches, then the side length is 5 ${\text{in}}^3$.