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]: Mike has 87 baseball cards. Sam bought 13 of Mike's baseball cards.How many baseball cards does Mike have now?
[A]: 74.0

[Q]: The Montoya family spends 0.6 their budget on groceries and another 0.2 going out to eat. Altogether, what fraction of their budget doesthe Montoya family spend on food?
[A]: 0.8

[Q]: There were originally 20817 houses in Lincoln County. During ahousing boom, developers built 97741. How many houses are therenow in Lincoln County?
[A]:
118558.0