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: Mary has 9 yellow marbles Joan has 3 yellow marbles. How manyyellow marbles do they have in all?

A: 12.0
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Q: A tailor cut 0.75 inch off a skirt and 0.25 inch off a pair of pants. Howmuch more did the tailor cut off the skirt than the pants?

A: 0.5
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Q: Sandy went to the mall to buy clothes. She spent $13.99 on shorts, $12.08 on a shirt, and $7.43 on a jacket. How much money did Sandyspend on clothes?

A:
33.5
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