[Question]Lena is making a collage with pictures of all her closest friends and newspaper clippings that are about their interests. She has found three clippings for each friend’s pictures. It takes her six drops of glue to stick down each clipping. Lena has already glued her seven closest friends’ pictures. How many drops of glue will she need for the newspaper clippings for her collage?
[Answer]Lena has 3 clippings per friend, so she has 3 * 7 = 21 clippings to glue. She needs 6 drops of glue per clipping, so she will need 6 * 21 = 126 drops of glue. The answer is 126.
Q: Jina likes to collect mascots. She has 5 teddies, 3 times more bunnies, and a koala bear. Her mom decided to give her two additional teddies for every bunny she has. How many mascots Jina has in total?
A: In the beginning, Jina has 5 teddies * 3 bunnies / teddy = 15 bunnies. So her mom decided to give her 15 bunnies * 2 teddies / bunny = 30 teddies. So in total Jina has 5 teddies + 15 bunnies + 1 koala + 30 teddies = 51 mascots. The answer is 51.
Question: Tommy has a flag that is 5 feet wide and 4 feet tall. He wants to paint it with a new design. He knows from experience that he needs to paint both sides. Paint costs $2 a quart and a quart is good for 4 square feet. How much does he spend on paint?
Answer: Each side of the flag is 20 square feet because 5 x 4 = 20. Both side total to 40 square feet because 2 x 20 = 40. He will need 10 quarts because 40 / 4 = 10. This will cost $20 because 10 x 2 = 20. The answer is 20.
[Question]The school is organizing a trip to the museum. 4 buses were hired to take the children and teachers to their destination. The second bus has twice the number of people on it as the first bus. The third bus has 6 fewer people than the second bus. The fourth bus has 9 more people than the first bus. If the first bus has 12 people, how many people are going to the museum in total?
[Answer]The second bus is carrying 12 * 2 = 24 people. The third bus has 24 – 6 = 18 people. The fourth bus has 12 + 9 = 21 people on it. In total, there are 12 + 24 + 18 + 21 = 75 people on the buses. The answer is 75.
Q: Agatha has $60 to spend on a new bike. She spends $15 on the frame, and $25 on the front wheel. What does she have left, in dollars, to spend on a seat and handlebar tape?
A: Agatha spends 15 + 25 = 40 dollars. Agatha has 60 - 40 = 20 dollars left. The answer is 20.
Question: Mr. Curtis has 325 chickens on his farm where 28 are roosters and the rest are hens. Twenty hens do not lay eggs while the rest of the hens do. How many egg-laying hens does Mr. Curtis have on his farm?
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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Mr. Curtis has 325 - 28 = 297 hens. Out of the 297 hens, only 297 - 20 = 277 hens lay eggs. The answer is 277.