Mathematics, 17.05.2021 20:00, ellycleland16
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 44 minutes of calls is $19.72, and the remaining credit after 66 minutes of calls is $17.08 . What is the remaining credit after 73 minutes of calls?
Answers: 1
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