Answer: The volume squares from 8m^3 to 64m^3
Step-by-step explanation: The initial volume of the cube is 8 m^3 because 2m • 2m • 2m = 8m^3. If the side lengths are doubled then the volume becomes 4m • 4m • 4m = 64m^3 so the volume is now squared from the original because 8^2 = 64.