Question: Bobby wanted pancakes for breakfast. The recipe on the box makes 21 pancakes. While he ate 5 pancakes, his dog jumped up and was able to eat 7 before being caught. How many pancakes does Bobby have left?
Answer: Step-by-step reasoning process: Bobby ate 5 pancakes and his dog ate 7 so 5 + 7 = 12. The recipe makes 21 pancakes and 12 were eaten so 21 - 12 = 9 pancakes were left.
So the answer is 9.

Question: Porter earns $8 per day and works 5 times a week. His manager is asking him to work an extra day that promises him an extra fifty percent on top of his daily rate. How much money will he earn after a month if he renders overtime every week?
Answer: Step-by-step reasoning process: Porter's weekly earning is $8x5 = $40. Porter's monthly earning is $40x4 = $160. The extra amount he will earn when he works on his overtime is $8 x 50 / 100 = $4. So the amount he will earn on his overtime is $8 + $4 = $12. Since he will render overtime once every week, the total overtime pay he will earn in a month is $12 x 4 = $48. Therefore the total money he will earn in a week is $160 + $48 = $208.
So the answer is 208.

Question: Mia is buying Christmas gifts for her family. She has spent $30 on each of her 3 siblings, and the rest of her spending was for her parents. If Mia spent a total of $150 on Christmas gifts and each of her parents received gifts of equal value, how much money, in dollars, did she spend on each parent’s gift?
Answer: Step-by-step reasoning process: Mia spent a total of $30 per siblings * 3 siblings = $90 on her siblings. She therefore spent $150 total spending - $90 spending on her siblings = $60 on her parents. As each parent received an equal amount, each parent’s gift cost $60 total spending on parents / 2 = $30.
So the answer is 30.

Question: Vincent's bookstore is divided into different kinds of books. His top-selling books are fantasy books. He also sells literature books which cost half of the price of a fantasy book. If his fantasy books cost $4 each, and he sold five fantasy books and eight literature books per day, how much money will he earn after five days?
Answer:

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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Step-by-step reasoning process: Vincent earns $4 x 5 = $20 for selling 5 fantasy books per day. The price of the literature book is $4 / 2 = $2 each. He earns $2 x 8 = $16 per day for selling 8 literature books. So the total money he earns per day is $16 + $20 = $36. Therefore, he will earn $36 x 5 = $180 after 5 days.
So the answer is 180.