I know the answers but someone tell me why its that answer! And also a better understanding.

So you will find these answers for 1 you will need to be multiplying the amount of fabric for ONE costume multiplied by EIGHT which is the amount of costumes. (ex. 1 1/2*8)

For number 2 you would divide each amount of fabric by the original fabric.

(ex. 10 divided by 1 1/2)

im alright what do you need

step-by-step explanation:

the two may have that, even a breakdown is probably offered