A repair service charges by the hour.The amount of money they charge is blow.what equation does the repair service use to charge customers?
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Answer: C = 30h + 70
Step-by-step explanation:
The base price for 1 hour is $70, and for each hour after that the total cost goes up by $30. So this equation shows that for every hour after the first, +$30 is added to the total cost.