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Mathematics 9 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?

OpenStudy (anonymous):

Total minutes of talk time /Monthly cost of cell phone 0 $19.95 10 $20.45 20 $20.95 30 $21.45 40 $21.95

OpenStudy (anonymous):

A)The average rate of change is $0.50, meaning that for each minute of talk time, the monthly bill increases by $0.50. B)The average rate of change is $0.50, meaning that for every ten minutes of talk time, the bill increases by $0.50. C)The average rate of change is $0.05, meaning that for each minute of talk time, the monthly bill increases by $0.05. D)The average rate of change is $0.05, meaning that for every ten minutes of talk time, the bill increases by $0.05.

OpenStudy (anonymous):

still want help

OpenStudy (anonymous):

?

OpenStudy (anonymous):

no i figured it out thanks anyways

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