SOLUTION: A cellular phone plan had the following schedule of charges: Basic service, including 100 minutes of calls $20.00 per month 2nd 100 minutes of calls $0.075 per minute Additi

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Question 1176286: A cellular phone plan had the following schedule of charges:

Basic service, including 100 minutes of calls $20.00 per month
2nd 100 minutes of calls $0.075 per minute
Additional minutes of calls $0.10 per minute
What is the charge for 200 minutes of calls in one month?
What is the charge for 250 minutes of calls in one month?
Construct a function that relates the monthly charge C for x minutes of calls.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!

Hi
Question States:
C(200min) = $20.00  + $0.75*100 = $95
C(250min) = $95 + $0.10*50 = $100

For x ≥ 200min, C(x) = $95 + $0.10(x - 200)

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