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Mathematics
OpenStudy (anonymous):

media services charges 40 for a phone and 20 a month for plan find a model that detrmine the total cost c(t) of operating a media service phone for t months

OpenStudy (saifoo.khan):

Online college?

OpenStudy (anonymous):

\[COST(t)= 20(t) +40\]20 will be paid every month and 40 is a one time only payment, t is time establish as months.

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