Make a model to solve the problem. Should you consider fuel efficiency, measured in miles per gallon, when buying a new car? Suppose that car A costs $23,000 and gets 20 mi/gal, whereas car B costs $28,000 but gets 25 mi/gal. Further, assume that the price of gasoline is $4/gal and that you plan to drive the car for m mi. Taking into account price and fuel efficiency only, complete the following. (a) Write an expression CA for the cost of car A. CA = (b) Write an expression CB for the cost of car B. CB = (c) How many total miles m would you have to drive so that the cost is the same for both cars? mi

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