Posted by **Haru** on Wednesday, July 23, 2008 at 6:27pm.

Manny is a plumber and charges $50 when he visits a client and $30 per hour for every hour he works. His bill can be expressed as a function of hours, x, with the function

f(x)= 50 +30x. Which statement explains the meaning of the inverse of the function?

A)Total bill as a function of the number of hours

B)Cost per hour as a function of the total bill

C)Number of hours as a function of the total bill

D)Total bill as a function of the cost per hour

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