Question: 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?
Answer with step-by-step thinking: 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.
So the answer is 18.


Question: Bernie has a collection of 18 unique postcards. He decided to sell half his collection for $15 per postcard. After he has successfully sold his postcards he decided to spend all the earned money to buy new postcards for $5 each. How many postcards does Bernie have after all his transactions?
Answer with step-by-step thinking: Half of Bernie's collection means 18 * 0.5 = 9 postcards. So he was able to sell 9 postcards for 9 * 15 = $135. He decided to spend all of his money on new postcards for $5 each, so he was able to buy 135 / 5 = 27 new postcards. This means Bernie has 9 + 27 = 36 postcards after all.
So the answer is 36.


Question: Randy had some money. Smith gave him another $200. Randy then gave Sally $1,200 and kept the rest. If Randy has $2000 left, how much money, in dollars, did Randy have at first?
Answer with step-by-step thinking:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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After Smith gave him $200, Randy had 2000 + 1200 = 3200 dollars. Randy had 3200 - 200 = 3000 dollars at first.
So the answer is 3000.