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The phone company calculates a customer’s monthly cell phone bill as follows: monthly service charge: $35...

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Advance Math

The phone company calculates a customer’s monthly cell phonebill as follows: monthly service charge: $35 voice charges:

First 100 minutes: $0.018 per minute

Second 100 minutes: $0.034 per minute

Additional minutes: $0.055 per minute

a. What is the charge for a month in which 158 minutes wereused?

b. What is the charge for a month in which 311 minutes wereused?

c. Construct a piecewise function that gives the monthly chargefor x minutes of usage.

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