A prepaid cell phone company charges 13.5 as a monthly fee and 0.19 per minute of calling Time express the monthly cost in terms of minutes of call time

Answer: 71.1minutes

Step-by-step explanation:

From the question, we were given monthly cost of calls and amount of call per minute.

To express the monthly cost in terms of minutes of call time will be:

Monthly cost = call per minute x f

Let minutes of call time be f

13.5 = 0.19 x f

13.5 = 0.19f ... divide both sides by 0.19

f = 13.5 / 0.19

f = 71.1 minutes