The 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 35 minutes of calls is $15.10, and the remaining credit after 73 minutes of calls is $9.78. What is the remaining credit after 94 minutes of calls?
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Home » Mathematics » The 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 35 minutes of calls is $15.10, and the remaining credit after 73 minutes of calls is $9.78.