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Mathematics 9 Online
OpenStudy (anonymous):

Which of the following functions represents a cell phone bill if there is a monthly charge of 20 dollars plus 6 cents for each minute of use? f(x) = 20 + 6x f(x) = 20.06x f(x) = 20 + 0.06x

OpenStudy (anonymous):

x= for how many minutes did you use so 20+ the extra charges so 20 + 6(minutes) 20+6x

OpenStudy (anonymous):

wait it said cents right :/

OpenStudy (anonymous):

how many cents = 1 dollar

OpenStudy (anonymous):

okay 100 cent 6 cent becomes 0.06 dollar so its 20 + 0.06x

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