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Biology 10 Online
OpenStudy (anonymous):

The credit remaining on a phone card (in dollars) is a linear function of the total calling time made with the card (in minutes). The remaining credit after 40 minutes of calls is $13.60, and the remaining credit after 71 minutes of calls is $8.64. What is the remaining credit after 74 minutes of calls?

OpenStudy (anonymous):

How is this biology? -__-::

OpenStudy (anonymous):

OOPS K BYE

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