Angelo buys a popcorn for 4 dollars. And a small drink for 3 dollars. And a box of fruit snacks for 5 dollars. Write and solve and equation of how much Angelo gave to the cashier if he got three dollars back.

Change=given-cost

cost=total cost=cost for all of them added together

cost=popcorn+small drink+fruit snacks

cost=4+3+5

cost=12

given=x

change=3

3=x-12

that is the equation

solve

add 12 to both sides

15=x

he gave $15 to the cashier

The answer is $15.00 because $15-$12=$3