Question

What is the volume of the composite figure? cubic inches

Answer 1

4×7×3+1/3(7×3×(12-4))
=84+56
=140 cubic inches

Answer 2

3x4x7 = 84
8x7x3 = 168
168/3= 56

84+56 = 140

(the 8 comes from 12-4)

140 cubic inches