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A repair company charges a flat fee of $40 plus $30 for each hour (h) spent making a repair. Which of the following equations could be used to find the charge(c) for any service call?
(1)c=$30h
(2)c=$40h
(3)c=$40+$30h
(4)c=$40h+$30h
(5)c=$30+$40h

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Answer:

(3) c=$40+$30h

Step-by-step explanation:

Answer:

(3) c=$40+$30h

Step-by-step explanation:

Since there is an initial fee for a repair, that is just added. Since the hourly fee depends on how long it takes, it needs a variable with it.

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