Keith plans to buy a car two years from now. he currently has 3,000 saved up to buy the car. a. from all the cars that keith is considering buying how much money does he need to save per month over the two years if the least expensive car he wants to buy is 15,000? b. from all the cars that keith is considering buying how much money does he need to save per month over the two years if the most expensive car he wants to buy is $25,800 c. considering all of keith’s options, represent all possible amounts that he must save per month as an algebraic inequality