you must decide whether to buy a new car for $18,000 or lease the same car over a​ three-year period. Under the terms of the​ lease, you can make a down payment of ​$3000 and have monthly payments of ​$250. At the end of the three​ years, the leased car has a residual value​ (the amount you pay if you choose to buy the car at the end of the lease​ period) of $10,000. Assume you can sell the new car at the end of the three years at the same residual value. Is it less expensive to buy or to​ lease? the cost for buying and selling it after 3 years would be $​