Q: Jonas is a book collector. He has so many books he is converting his third bedroom into a library. This room has 400 square feet of space. He plans to put several bookshelves in the room and each bookshelf takes up 80 square feet of space. If he reserves 160 square feet of space to use for a desk and some walking space, how many shelves can he put in the room?
A: If he reserves 160 sq. ft. of space for a desk and some walking space, then he will have 400 - 160 = 240 sq. ft. of space remaining. If each bookshelf takes up 80 sq. ft. of space, then 240 sq ft can contain 240 / 80 = 3 bookshelves. The answer is 3.
Question: A married couple and their 6 children are ordering some pizza. If the couple want 3 slices each and the children want 1 slice each, how many 4-slice pizzas should they order?
Answer: The couple want 3 slices each for a total of 2 * 3 = 6 slices. The children want 1 slice each for a total of 1 * 6 = 6 slices. They want 6 + 6 = 12 slices in total. Each pizza has 4 slices so they need 12 / 4 = 3 pizzas. The answer is 3.
[Question]Will and Henry go fishing in a river. Will catches 16 catfish and 10 eels. Henry challenges himself to catch 3 trout for every catfish Will catches. Due to environmental concerns, Henry decides to return half his catch after meeting his own challenge. How many fishes do they have altogether now?
[Answer]Will caught 16 + 10 = 26 fishes. Henry caught 3 trout for each catfish Will caught so since Will caught 16 catfish, Henry caught 16 * 3 = 48 trout. Half of 48 trout is (1 / 2) * 48 = 24. Henry returned 24 trout leaving him with 48 - 24 = 24 trout. They now have a total of 26 + 24 = 50 fishes. The answer is 50.
Q: Zig wrote four times as many books as Flo. If Zig wrote 60 books, how many books did they write altogether?
A: If Zig wrote 60 books, four times as many books as Flo, Flo wrote 60 / 4 = 15 books. Together, they wrote 60 + 15 = 75 books. The answer is 75.
Question: Jim is wondering how many miles each gallon of gas gets him. His gas tank is 12 gallons. He has 2/3 of a tank left after he drives to and from work, which is 10 miles away from his house. How many miles per gallon does he get?
Answer: He used 1 / 3 of his tank because 1 - (2 / 3) = 1 / 3. He used 4 gallons of gas because 12 x (1 / 3) = 4. He drove 20 miles because 2 x 10 = 20. He gets 5 miles per gallon because 20 / 4 = 5. The answer is 5.
Q: Dorothy earns $60000 a year from her work. She needs to pay 18% of this amount in taxes. How much money will she have left after she pays the taxes?
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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The amount in taxes Dorothy needs to pay is 18 / 100 * 60000 = $10800. So she is going to be left with 60000 - 10800 = $49200. The answer is 49200.