You are provided with an arithmetic question. Your task is to compute the solution using the given arithmetic operations. The only arithmetic operators needed to answer the questions are'+'(addition) and'-'(subtraction). The answer should be correct to one decimal place.

Q: There were 6 roses in the vase. Mary cut some roses from her flower garden. There are now 16 roses in the vase. How many roses did she cut?

A: 10.0
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Q: Nancy grew 2 onions, Dan grew 9 onions, and Mike grew 4 onions.They worked for 6 days on the farm. How many onions did they growin total?

A: 15.0
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Q: Melanie has 41 books and 31 magazines in her library. She boughtseveral books at a yard sale over the weekend. She now has 87 booksin her library. How many books did she buy at the yard sale?

A:
46.0
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