Part C For 560 texts, plan C has the same monthly charge as plan A. For 580 texts, plan
C has the same monthly charge as plan B. Write an equation representing the
charges for plan C.
Part D:
Suzanne intends to purchase one of the plans. Which plan should Suzanne purchase based on the average number of text messages that she thinks she will send each month? Using the equations that represent the three plans, provide evidence to support your answer algebraically.