Ray buys a pack of hamburger meat for $5.00, a box of crackers for $3.50, 4 bags of frozen vegetables at $2.00 per bag and a pack of cheese for $3.50 at the grocery store. Because he is a store rewards member, he gets 10% off of his purchase. What does his total grocery bill come to? Let's think first. Chain of thought:
He buys 4 bags of frozen vegetables for $2.00 a bag so that's 4 * 2 = $8.00. The meat is $5.00, the crackers are $3.50, the vegetables are $8.00 and the cheese is $3.50 for a total of 5 + 3.50 + 8 + 3.50 = $20.00. He gets 10% discount on his $20.00 purchase so that's .10 * 20 = $2.00 off. His final grocery bill will be 20 - 2 = $18.00.
Therefore, the answer is 18.