Q: John buys 3 t-shirts that cost $20 each. He also buys $50 in pants. How much does he spend?
A: He spends 20 * 3 = $60 on t - shirts. So he spends 60 + 50 = $110 in total. The answer is 110.
Question: Allison, a YouTuber, uploads 10 one-hour videos of food reviews each day to her channel. She uploaded videos halfway through June, at that pace, and then doubled the number of video hours she uploaded on the remaining days. What's the total number of video hours she has uploaded at the end of the month?
Answer: Since June has 30 days, halfway is 1 / 2 * 30 = 15. The total number of video hours halfway through June is 10 * 15 = 150. When she doubled the number of video hours, the total per day became 10 * 2 = 20. The total number of video hours for the remaining days is 15 * 20 = 300. The total number of video hours for the whole month is 300 + 150 = 450. The answer is 450.
[Question]Camden just bought 3/4 times as many dogs as Rico, who has 10 more dogs than Justin. If Justin has 14 dogs, what's the total number of legs that Camden's dogs have?
[Answer]If Justin has 14 dogs, Rico, who has 10 more dogs than Justin, has 14 + 10 = 24 dogs. Since Camden just bought 3 / 4 times as many dogs as Rico, he bought 3 / 4 * 24 = 18 dogs. A dog has four legs, so Camden's 18 dogs have 18 * 4 = 72 legs. The answer is 72.
Q: Whitney’s mom gave her two $20 bills to spend at the school book fair. Whitney has decided to buy 2 posters, 3 notebooks, and 2 bookmarks. Each poster costs $5, each notebook costs $4, and each bookmark costs $2. How much money, in dollars, will Whitney have left over after the purchase?
A: Whitney is buying 2 posters for $5 each, so the posters will cost 2 * $5 = $10 total cost for posters. Whitney is buying 3 notebooks for $4 each, so the notebooks will cost 3 * $4 = $12 total cost for notebooks. Whitney is buying 2 notebooks for $2, so the bookmarks 2 * $2 = $4 total cost for bookmarks. Since Whitney is paying $10 for posters, $12 for notebooks, and $4 for bookmarks, her total purchase will cost $10 + $12 + $4 = $26 total purchase cost. Whitney’s mom gave her 2 $20 bills, so she will be paying with 2 * $20 = $40 total payment. Since Whitney is paying with $40 and her purchase cost will be $26, she will have $40 - $26 = $14 left over after the purchase. The answer is 14.
Question: Yasna has two books. One book is 180 pages long, and the other book is 100 pages long. If Yasna wants to finish both of the books in two weeks, how many pages will Yasna need to read every day, if she reads an equal number of pages each day?
Answer: The total number of pages is 180 + 100 = 280 pages. The number of pages Yasna needs to read every day for two weeks is 280 / 14 = 20 pages. The answer is 20.
Q: There are 200 snakes in a park. There are three times as many pythons as boa constrictors. If there 40 boa constrictors and the rest of the snakes are rattlesnakes, calculate the total number of rattlesnakes in the park.
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.
user
If the number of pythons is three times the number of boa constrictors, then there are 3 * 40 = 120 pythons. Together, the number of pythons and boa constrictors is 120 + 40 = 160. If there are 200 snakes in the park, the number of rattlesnakes is 200 - 160 = 40. The answer is 40.