Answer:
20 5/16 cubic inches
Step-by-step explanation:
A= base times width times height
base: 2 1/2 = 5/2
width: 2 1/2 = 5/2
height: 3 1/4 = 13/4
5/2 times 5/2 times 13/4 = 325/16 = 20 5/16