milkshakegrande101
20.09.2020 •
Mathematics
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 45 minutes of calls is $19.15, and the remaining credit after 3 minutes of calls is $16.81. What is the remaining credit after 71 minutes of calls?
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Ответ:
answer:
a
step-by-step explanation: