US Airways needs three heavy-duty plane that cost $115,000 in total. Morning Leasing has offered to lease the plane to US Airways for a total of $23,000 per year for each of five years, with the lease payments payable in advance. The planes are estimated to be worth a total of $10,000 in 5 years. The planes are class 10 assets (CCA rate, 30%) with a useful life of five years, the firms tax rate is 30% and US Airwayss after-tax cost of debt is 8%. The present value of the CCA tax savings = $23,529. Under the terms of the lease, Morning leasing has agreed to pay the $2,200 annual maintenance costs (before tax, end of year payment). Should US Airways lease or purchase the planes? Show your work.