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Mathematics 8 Online
OpenStudy (anonymous):

Suppose a 15 minute call costs $5.26, and a 30 minute call costs $10.24. Find a formula relating time (in minutes) and cost (in dollars).

OpenStudy (phi):

write the numbers in pairs (15, 5.26) and (30, 10.24) btw, are you sure the 2nd cost isn't 10.54 (not 10.24) ??

OpenStudy (anonymous):

Yeah, im sure its $10.24 i thought it was $10.54 also. Thank you!!

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