Please solve a,b, and c. Please show work.

1. Daeske is negotiating to lease ten new railroad cars with AIG Leasing. The firm has received an offer from Trinity Industries for a total purchase price of $1,000,000. The terms of the lease include four payments of $270,000, with each payment occurring at the beginning of the year. An alternative to leasing is to borrow the money and buy the railroad cars. The $1,000,000 term loan for four years has an annual interest rate of 10%. Assume the railroad cars fall into the MACRS 3-year class and has an expected residual value of $100,000. The applicable depreciation rates are .3333,.4445, .1481 and .0741. Maintenance costs would be included in the lease. If the railroad cars are purchased, a maintenance contract would be bought at the beginning of each year for $15,000 annually. Daeske plans to buy a new fleet of railroad cars at the end of the fourth year. The firm has an effective tax rate of 21%. a). What is Daeske's present value of the cost of owning? b.) What is Daeske's present value of the cost of leasing? c.) What is Daeske's Net Advantage to Leasing (NAL)