In question 13 you must find the volume of the prism in 1/6 in. There are 13 1/6in in 2 1/6in, 7 1/6in in 1 1/6in, and 6 in 1in, so you multiply 13 * 7 * 6 = 546
Find the volume in Q14, 4 2/5 * 3 1/2 * 2 1/4
Convert

*

*

= 18.9
The answers on the third one are A, C, and F
The answers on the fourth one are B, D, and E
Hopefully it helps!!