If the volume is 10 cubic feet, then the height is around 2.1-2.2 feet high. One foot is 12 inches, so the height in inches is around 25.2-26.4 which is less than 30 inches.
First, find the side length of the cube. The volume of a cube is denoted by: V = s * s * s, where s is the side length. We don't know the side length here, but we do know the volume, so plug that in:
10 = s * s * s
s = ∛10 = 2.2 ft
Convert this to inches by multiplying by 12:
2.2 * 12 = 26.4 inches
Thus, since 26.4 < 30, the cube can fit on the shelf.
