Please, guys, help me with this problem, please

Answer:
80 cubic in
Step-by-step explanation:
The volume of the rectangular prism is 2*2*14= 56 cubic in
The volume of the triangular prism is 2*2*3=12 cubic in
Since there are one on each side, you have to add another 12 cubic in
so that would be 56+ (12+12) = 80 cubic in