The phone company A Fee and Fee 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 210 minutes, the monthly cost will be $87. If the customer uses 990 minutes, the monthly cost will be $321. A) Find an equation in the form y = m x + b , where x is the number of monthly minutes used and y is the total monthly of the A Fee and Fee plan. Answer: y = ___ Do not use any commas in your answer. B) Use your equation to find the total monthly cost if 756 minutes are used. Answer: If 756 minutes are used, the total cost will be ___ dollars.
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