Q: Lorraine made a pan of brownies and cut them into 16 pieces. Her children ate 25% of the brownies when they got home from school. After dinner, the entire family ate 50% of the remaining brownies. After everyone went to bed, Lorraine ate 1 more brownie. How many brownies are left over?
A: Her children ate 25% of the 16 brownies so they ate .25 * 16 = 4 slices. There were 16 brownies and the children ate 4 slices, leaving 16 - 4 = 12 brownies. The family ate 50% of the remaining 12 brownies so they ate .50 * 12 = 6 brownies. There were 12 brownies and they ate 6 which leaves 12 - 6 = 6 brownies. Lorraine had 1 more of the 6 remaining brownies which leaves 6 - 1 = 5 brownies. The answer is 5.
Question: Matt has 8 baseball cards worth $6 each. If he trades two of them to Jane in exchange for 3 $2 cards and 1 $9 card, how much profit does he make?
Answer: First find the value of the 2 cards Matt trades: $6 / card * 2 cards = $12. Then find the total value of the 3 $2 cards: 3 cards * $2 / card = $6. Then subtract the value of the cards Marcus gave up from the value of the cards he gained to find his profit: $9 + $6 - $12 = $3. The answer is 3.
[Question]Chuck can ride the merry-go-round 5 times longer than Dave who can only ride it for 10 minutes before getting sick. Erica can stay on the merry-go-round 30% longer than Chuck before getting sick. How long can Erica stay on the merry-go-round?
[Answer]Dave can ride the merry - go - round for 10 minutes and Chuck can ride 5 times longer than Dave so he can ride for 10 * 5 = 50 minutes. Erica can stay on 30% longer than Chuck who can ride for 50 minutes so that's an extra .30 * 50 = 15 minutes. Chuck can ride for 50 minutes and Erica can ride an extra 15 minutes for a total of 50 + 15 = 65 minutes. The answer is 65.
Q: On the first day of the garden center sale, 14 marigolds were sold. The next day 25 more marigolds were sold. On the third day the center sold two times the number of marigolds it did on the day before. How many marigolds were sold during the sale?
A: When you add the first two days you get 14 + 25 = 39 marigolds. On the third day they sold 25 * 2 = 50 marigolds. During the three day sale 39 + 50 = 89 marigolds were sold. The answer is 89.
Question: In four years, Peter will be twice as old as Harriet. If Peter's age is currently half of his mother's age, who is 60, how old is Harriet now?
Answer: If Peter's age is currently half of his mother's age, who is 60, Peter is 1 / 2 * 60 = 30 years old. In four years, Peter will be 30 + 4 = 34 years old. Since Peter's age in four years will be twice Harriet's age, Harriet will be 34 / 2 = 17 years old in four years. Currently, Harriet is 17 - 4 = 13 years old. The answer is 13.
Q: Papi Calot prepared his garden to plant potatoes. He planned to plant 7 rows of 18 plants each. But he still has a bit of room left, so he’s thinking about adding 15 additional potato plants. How many plants does Papi Calot have to buy?
A:

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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Let’s first calculate the number of plants that Papi had planned: 7 rows * 18 plants / row = 126 plants. Now let’s add the other plants: 126 plants + 15 plants = 141 plants. So Papi has to buy 141 plants. The answer is 141.