Carla's Plumbing charges $25 for a service call and $28 per hour, h, for labor for any repair. The total cost, t, for a repair c
an be calculated using the equation below. 28h+25=t Mr. Callahan paid a total of $165 for a repair. How many hours did it take to complete his repair?
1 answer:
Answer:
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I'm pretty sure its 40
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