Use the et present value methodology when creating a cost-benefit analysis to evaluate the following project: The State of Massachusetts would like to replace a National Guard armory rapidly reaching the end of its service life. The Department of Military Affairs has been told that continued special maintenance would be $275,000 annually. Rehabilitation of facility would cost $4000,000, and would extend the armory's service life by 15 years. Calculate the discount factor for each year (use 4% discount rate @ 15 years), annual present present value cost of maintenance (15 years), the discounted benefit of rehabilitating the armory, and give the discounted cost of rehabilitation, what is the benefit/cost ratio for the Proposal?