The phone company Ringular has a monthly cellular plan where a customer pays a flat monthly fee and then a certain amount of money per minute used on the phone. If a customer uses 240 minutes, the monthly cost will be $104. If the customer uses 660 minutes, the monthly cost will be $230. A) Find an equation in the form y = mx + b, where x is the number of monthly minutes used and y is the total monthly
of the Ringular plan.
y =
B) Use your equation to find the total monthly cost if 728 minutes are used.
If 728 minutes are used, the total cost will be
dollars.