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50 POINTS Here are the prices for cheese pizza at a certain pizzeria: small pizza is 11.60 medium is unknown large is 16.26

A. You had a coupon that made the price of a large pizza $13.00. For what percent off was the coupon

B. Your friend purchased a medium pizza for 10.31 with a 30% off coupon. What is the price of a medium pizza without a coupon

C. Your friend has a 15% off coupon and $10. What is the largest pizza that your friend can afford, and how much money will be left over after the purchase.