Espanol 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 32
minutes of calls is $15.20, and the remaining credit after 49 minutes of calls is $12.65. What is the remaining credit after 65 minutes of calls?
Remaining
credit
(in dollars
sl
х
?
Calling time
in minutes)

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