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Mathematics 15 Online
OpenStudy (anonymous):

A cell phone plan has a monthly cost that is shown in the table below. What is the correct statement regarding the average rate of change during the 40 minute time of talk? Total minutes of talk time Monthly cost of cell phone 0 $14.95 10 $15.95 20 $16.95 30 $17.45 40 $18.95 The average rate of change is $1.0

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