[Question]Tony decided he wanted to be an astronaut. He went to college for 4 years to get a degree in science. He then went on to get 2 more degrees in other fields for the same period of time. He also got a graduate degree in physics, which took another 2 years. How many years in total did Tony go to school to be an astronaut?
[Answer]Tony got 3 degrees which each took 4 years, for 3 * 4 = 12 years spent. He then got his graduate degree, which was another 2 years added to the previous total, for 12 + 2 = 14 years in total. The answer is 14.
Q: Madison takes her dog to the dog park. Counting Madison's dog, half the dogs have spots and 1/5 have pointy ears. If 15 dogs have spots, how many have pointy ears?
A: First double the number of dogs with spots to find the total number of dogs: 15 dogs * 2 = 30 dogs. Then multiply that number by 1 / 5 to find the number that have pointy ears: 30 dogs * 1 / 5 = 6 dogs. The answer is 6.
Question: Michelangelo has 28 ceilings to paint. This week, he paints 12 of them. Next week, he will paint 1/4 the number of ceilings he did this week. How many ceilings will be left to paint after next week?
Answer: After this week, Michelangelo will have 28 - 12 = 16 more ceilings to paint. Next week, Michelangelo will paint 12 / 4 = 3 ceilings. Michelangelo will have 16 - 3 = 13 more ceilings to paint. The answer is 13.
[Question]Sammy can eat 15 pickle slices. His twin sister Tammy can eat twice as much as Sammy. Their older brother Ron eats 20% fewer pickles slices than Tammy. How many pickle slices does Ron eat?
[Answer]Tammy can eat twice as many pickle slices as Sammy who eats 15 so Tammy can eat 15 * 2 = 30 pickle slices. Ron eats 20% fewer pickle slices than Tammy who eats 30 pickle slices so that's .20 * 30 = 6 fewer slices than Tammy. Tammy eats 30 slices and Ron eats 6 less, then Ron eats 30 - 6 = 24 pickle slices. The answer is 24.
Q: There are 25 roses in a garden. There are 40 tulips. There are 35 daisies. What percentage of flowers are not roses?
A: There are 25 + 40 + 35 = 100 flowers total. There are 40 + 35 = 75 flowers that are not roses. Therefore, (75 / 100) * 100 = 75% of the flowers are not roses. The answer is 75.
Question: Lana had 8 blank pages left in her binder, but she knew she would need more for her next class. Duane took half of the 42 pages in his binder out and gave them to her. How many pages does Lana have in her binder after adding Duane’s?
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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Duane gave Lana 42 / 2 = 21 pages. After adding Duane’s, Lana has 21 + 8 = 29 pages in her binder. The answer is 29.