Answer :
V = l * w * h
Length: 1 foot
Width: 1 foot
Height: 4.25 feet
The volume = 4.25 * 1 * 1 = 4.25
4.25 cubic feet
Length: 1 foot
Width: 1 foot
Height: 4.25 feet
The volume = 4.25 * 1 * 1 = 4.25
4.25 cubic feet
Volume = (length) x (width) x (height)
(I think you knew that.)
Write the measurements of the locker into that formula:
Volume = (1 foot) x (1 foot) x (4 and 1/4 foot)
= ( 1 x 1 x 4-1/4) (foot³)
I think I'll leave that multiplication for you to finish up.