Extra Credit: Heather needs the school supplies shown below. She has a $20.00 bill. If she buys any 3 items, how much change will she receive from the cashier

+1,000)=g7e=mc2-g=7 because if you know algebra you should know g=7 to get your answer

32

step-by-step explanation:

these are your clues: 1. kim ran 18 races2. this was four fewer races than twice thenumber, notice it says twice the number, so you would do the equation 18x2-4; which equals the number 32.thus, 32 is your answer.