Answer:
to find the volume you need to multiply the width length and height so you need to cube the side lengths. the side lengths of a cube are all equal
2 cubed is 8 and 2.5 cubed is 15.625
15.625 minus 8 is 7.625
so the volume of the second cube can hold 7.625 ft cubed more
to find this as a percentage you do 15.625 minus 8 and divide this by 8 and then times by 100
15.625 minus 8 is 7.625
7.625 divided by 8 is 0.953125
0.953125 times by 100 is 95.3125% or 95.3% to 3 significant figures.
