Suppose you want to but three loaves of bread that cost $1.50 each and a jar of grape jelly that costs $4.a jar of peanut butter is $2.75,but you don't need any peanut butter. you have $10. how much money will you have left over?

You want 3 loaves of bread, at $1.50 a piece and a jar of jelly, at $4. So set up the equation 3(1.5)+1(4). You don't want peanut butter so that's unnecessary information. Your total is $8.50, so subtract that from 10, you get 1.5. You will have $1.50 left over.

Maybe the answer is 20mm. all i really did was just multiply, which is obvious.