Question

Easton has a cell phone plan that charges $40 per month and includes 400 international minutes, but then charges $7 per minute for every minute used over the included minutes. How much would Easton have to pay in a month if he used 49 minutes over the limit? How much would Easton have to pay in a month if he went over by xx minutes?
Answer
Attempt 1 out of 2

Total cost when over by 49 minutes:
Total cost when over by xx minutes:

Answer 1

Total cost = 40 + 7x dollars, where x is minutes over the limit.

For 49 minutes over: 40 + 7(49) = 40 + 343 = $383.

For xx minutes over: 40 + 7(xx) dollars (equivalently 40 + 7x dollars with x = number of minutes over).