Question: Lily types 15 words a minute and takes a 2-minute break every 10 minutes. How long does it take for Lily to type 255 words?
Answer: It would take Lily 255 words / 15 wpm = 17 minutes to type without taking a break. Since Lily takes a break after 10 minutes of typing she takes 17 minutes + 2 minutes = 19 minutes. The answer is 19.
[Question]Jake agrees to work part of his debt off. He owed someone $100 but paid them $40 before agreeing to work off the rest.  He worked for $15 an hour. How many hours did he have to work?
[Answer]He has to work off $100 - $40 = $60. So he has to work $60 / 15 = 4 hours. The answer is 4.
Q: It takes 2.5 hours to groom a dog and 0.5 hours to groom a cat. What is the number of minutes it takes to groom 5 dogs and 3 cats?
A: 2.5 * 5 = 12.5 hours. 0.5 * 3 = 1.5 hours. 12.5 + 1.5 hours = 14 hours. 14 hours = 14 * 60 = 840 minutes. It would take 840 minutes to groom 5 dogs and 3 cats. The answer is 840.
Question: Jane is shopping for some fruit. She sees a stand of fruit advertising 10 apples for $2, and another one advertising 5 oranges for $1.50. Assuming there's no price discount for buying in bulk, how much would Jane spend in cents if she bought 12 of the cheaper of the two fruits?
Answer: First, we need to find out which fruit is cheaper individually. We start by figuring out the price for a single apple by performing 200 / 10 = 20 cents per apple. Then we find out the price of an individual orange, by performing 150 / 5 = 30 cents per orange. Since 20<30, the apples are cheaper. To determine the answer, we multiply 20 * 12 = 240 cents. The answer is 240.
[Question]There are 250 books inside a library. On Tuesday, 120 books are taken out to be read by children. On Wednesday, 35 books are returned. On Thursday, another 15 books are withdrawn from the library. How many books are now in the library?
[Answer]On Tuesday, 120 books were taken out 250 - 120 = 130 books. On Wednesday, 35 books were returned 130 + 35 = 165 books. On Thursday, 15 books were borrowed 165 - 15 = 150 books. The answer is 150.
[Question]Jason bought a new bookcase that can hold a maximum of 80 pounds of weight. Jason has 70 hardcover books that each weigh half a pound, 30 textbooks that each weigh 2 pounds, and 3 knick-knacks that each weight 6 pounds. How many pounds over the bookcase's weight limit is this total collection of items?
[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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First find the total weight of the hardcover books: 70 books * .5 pound / book = 35 pounds. Then find the total weight of the textbooks: 30 books * 2 pounds / book = 60 pounds. Then find the total weight of the knick - knacks: 3 knick - knacks * 6 pounds / knick - knack = 18 pounds. Then find the total weight of all the items: 35 pounds + 60 pounds + 18 pounds = 113 pounds. Then subtract the bookcase's weight limit: 113 pounds - 80 pounds = 33 pounds. The answer is 33.