suppose that a cell phone plan charges $15 for the first 60 minutes or less used in a month and $0.50 for each additional minute
. Write a piecewise function that shows the charges for time t where t ranges from 0 to 63 minutes
1 answer:
F(x)=15 when x<span>≤60
=.5(x-60)+15 when x>60
</span>
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