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15 October, 03:34

A plumber charges $25 for a service call plus $50 per hour of service.

What is the Rate of Change? $

per hour

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Answers (1)
  1. 15 October, 04:02
    0
    Step-by-step explanation:

    y=x+b

    y=50x+25

    50 is the rate per hour but 25 is a one-time cost
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