Recovery Centers of America needs to acquire new vehicles that will cost $2.5 million across its six state service area. It plans to use the vehicles for three years, at which time new vehicles will be acquired. The company can obtain a 3.49 percent bank loan to buy the vehicles or it can lease the vehicles for three years. Assume that the following facts apply to the decision: - The vehicles fall into the five-year class for tax depreciation, so the MACRS allowances are 0.2,0.32,0.19,0.12,0.11, and 0.06 in Years 1 through 6, respectively. - The company's marginal tax rate is 28 percent. - Tentative lease terms call for payments of $550,000 at the end of each year. - The best estimate for the value of the vehicles after three years of wear and tear is $1,350,000. a. What is the NAL and IRR of the lease? b. Should the organization buy or lease the equipment