sarvan6571 sarvan6571
  • 17-06-2024
  • Mathematics
Answered

The monthly cost (in dollars) of a long-distance phone plan is a linear function of the total calling time (in minutes). The monthly cost for 31 minutes of calls is $18.64 and the monthly cost for 75 minutes is $24.36. What is the monthly cost for 42 minutes of calls?



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