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]: Fred found 47 seashells on the beach, he gave Jessica 25 of theseashells. How many seashells does he now have?
[A]: 22.0


[Q]: Dan grew 42 turnips and 38 cantelopes. Jessica grew 47 turnips. Howmany turnips did they grow in total?
[A]: 89.0


[Q]: Sally had 8 pennies and 7 nickels in her bank. Her dad gave her 9nickels and her mother gave her 2 nickels. How many nickels doesSally have now?
[A]:
18.0