First multiply 9 by 60 to find feet/minute: 9x60=540. Multiply that answer by 60 to get feet/hour: 540x60=32400. Divide that by 5,280 to get miles/hour: 32400/5280=6.14 roughly :)
Answer:
C.
Step-by-step explanation:
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Answer:
The monthly cost = $9 + $0.39x
Step-by-step explanation: