im so confused right now. how do I do this?

Step-by-step explanation:
that's how you find the answer.
does that help?
Answer:
13. 3,136 cubic cm
14. 2,496 cubic cm
15. 560 cubic cm
16. 105 cubic cm
17. 1,980 cubic cm
18. 1,122 cubic cm
Step-by-step explanation:
just multiply the numbers together to get the volume.