Answer:
63+48= 3(21+16)
Step-by-step explanation:
Check answer:
Distribute 3(21+16)
3(21)+3(16)
63+48
Each is 7 long and the whole piece is 56 so we can make 8 down the length and each is 1 wide and the whole things is 3 so that makes 3 across. we multiply these to get 8*3= 24
Hey!
To find volume, you have to multiply the length, width, and height. All you have to do is multiply the 3 numbers together.

<em>The volume is 30 m³.</em>
Good luck and hope this helps! :)