In: Advanced Math
The phone company calculates a customer’s monthly cell phone bill 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 were used?
b. What is the charge for a month in which 311 minutes were used?
c. Construct a piecewise function that gives the monthly charge for x minutes of usage.