Three problems:

1. decide if the following situation is a unit rate or not. why or why not?

you pay $20 for 4 books.

i know how to do it, i just don’t know how to explain.

2. decide if the following situation is a unit rate or not. why or why not?

you score 12 points in one basketball game.

once again, i know how to do it, i just don’t know how to explain.

lastly..

3.

what is a volume of a cube with a side length of 3 inches?