Lorie ordered a shed to hold her gardening supplies. the shed had a length of 14.25 ft, a width of 13 ft, and a height of 4 1/5 ft. ( pls explain how you got the answer )

a) 778.05 ft power of 3
b) 728.05 ft power of 3
c) 59.85 ft power of 3
d) 31.45 ft power of 3