Pls 20pts a rental car company offers two rental plans, plan a and plan b, for the same economy size car. for both plans, the total rental cost, ƒ(m ) is a function of the number of miles, m, that the car is driven. plan a: ƒ(m ) = 0.12m + 75 plan b: ƒ(m ) = 0.35m part a: in complete sentences, translate each function into a verbal model describing the total cost of the rental in terms of the number of miles that the car is driven. part b: for each function, determine how the rate of change will affect the total cost of a car rental. part c: for a car rental that will include a maximum of 250 miles for the duration of the rental, which plan is the most cost-effective.