[Question]Natasha has 3 times as much money as Carla, and Carla has twice as much money as Cosima. If Natasha has $60, and the three decide to buy goods worth the total amount they have and sell the goods at 7/5 of the buying price, how much profit would they make?
[Answer]If Natasha has $60, which is 3 times as much money as Carla, Carla has $60 / 3 = $20. Together, Carla and Natasha have $20 + $60 = $80. Carla has twice as much money as Cosima, meaning Cosima has $20 / 2 = $10. Combined, the three have $10 + $80 = $90. If they buy goods with the amount they have and sell at 7 / 5 of the buying price, the total amount of money they will get from selling the goods is 7 / 5 * 90 = $126. If they earn $126 from the sale of the goods they bought with the money they had, their profit is $126 - $90 = $36. The answer is 36.
Q: Jorge is 24 years younger than Simon. In 2005, Jorge is 16 years old. In 2010, how old would Simon be?
A: In 2005, Simon was 16 + 24 = 40 years old. There are 2010 - 2005 = 5 years between 2005 and 2010. In 2010 Simon would be 40 + 5 = 45 years old. The answer is 45.
Question: Emmy has a collection of 14 iPods. She loses 6 out of the 14 she had but she still has twice as many as Rosa. How many iPods does Emmy and Rosa have together?
Answer: Emmy has 14 - 6 = 8 iPods left. Rosa has 8 / 2 = 4 iPods. Emmy and Rosa have 8 + 4 = 12 iPods together. The answer is 12.
[Question]Hannah is trying to figure out how much she'll get paid this week. She makes $30/hour and works 18 hours per week. Her pay is docked $5 each time she's late. If she was late 3 times this week, how much does she get paid?
[Answer]Hannah's total earnings are 18 hours * $30 / hour = $540 a week. Her pay was docked because she was late 3 times, so 3 times * $5 per time = $15 were docked. She gets paid $540 - $15 = $525 at the end of the week. The answer is 525.
Q: Brian likes to read books. He read one book that had 20 chapters, two books that had 15 chapters each, and one book that had half the chapters of the three previous books put together. How many chapters of books did Brian read?
A: Brian read two books with 15 chapters, so he read 2 * 15 = 30 chapters. He also read a book with 20 chapters, bringing the total for the first three to 30 + 20 = 50 chapters. He then read a book with half the chapters of his cumulative total so far, so it had 50 / 2 = 25 chapters. In total, he read 30 + 20 + 25 = 75 chapters. The answer is 75.
Question: John decides to replace all his VHS with DVDs. He can trade in his VHS for $2 each and then buy the DVDs for $10 each. If he has 100 movies, how much does it cost to replace his movies?
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.
user
It cost 10 - 2 = $8 to replace each movie. So it would cost 8 * 100 = $800 to replace everything. The answer is 800.