For the following exercises, use this scenario: Two different telephone carriers offer the following plans that a person is considering. Company A has a monthly fee of $20 and charges of $.05/min for calls. Company B has a monthly fee of $5 and charges $.10/min for calls. 9. Find the model of the total cost of Company A’s plan, using for the minutes.
10. Find the model of the total cost of Company B’s plan, using for the minutes.
11. Find out how many minutes of calling would make the two plans equal.
12. If the person makes a monthly average of 200 min of calls, which plan should for the person choose?