What would you have to do to change 10 cubic feet into cubic inches?

a. divide by 1,728
b. multiply by 1,728
c. divide by 46,656
d. multiply by 46,656

The answer to you're question is B. Multiply by 1,728

Let's try it out

hmm, lets make up some fake dimentions

lets say we have a box that is 1ft by 2ft by 5ft
that makes 10 cubic feet

now we convert each to feet
1ft=12 inches
2ft=24 inches
5ft=12*5=60 inches

so
12*24*60=17280

alright
10 times what=17280?
divide both sides by 10
what=1728

so mulitply it by 1728 (which is 12^3)