[Example 1]
[Instruction and Question]
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.\n\nKeith spent $6.5 on a rabbit toy, $5.79 on pet food, and a cagecost him $12.51. He found a dollar bill on the ground. What was the total cost of NAME_1's purchases?

[Answer]
24.8

[Rationale]
NAME_1 spent $6.5 on a rabbit toy, $5.79 on pet food, and a cagecost him $12.51. Finding a dollar doesn't matter with NAME_1's purchase. (Total cost of NAME_1's purchase) = 6.5 + 5.79 + 12.51 = 24.80.