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: Dan had 7 potatoes and 4 cantelopes in the garden. The rabbits ate 4of the potatoes. How many potatoes does Dan now have?

A: 3.0
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Q: There are 41 short trees and 44 tall trees currently in the park. Parkworkers will plant 57 short trees today. How many short trees willthe park have when the workers are finished?

A: 98.0
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Q: Hoping to be named Salesperson of the Month, Rosa called thenames from 10.2 pages of the phone book last week. This week, shecalled the people listed on another 8.6 pages of the same phone book. How many pages worth of people did Rosa call in all?

A:
18.8
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