Mathematics, 23.11.2020 17:50, gatewood1058

A plumber charges a one-time surcharge fee of $50 for emergency calls plus a rate of $65 per hour. Write a function using function notation to determine the total amount charged for an emergency service call. Then find f(4.5), and explain the real-world interpretation of f(4.5).

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A plumber charges a one-time surcharge fee of $50 for emergency calls plus a rate of $65 per hour. W...