please complete and show all work

DO NOT USE EXCEL, MANUAL WORK REQUIRED. An equipment purchase is being considered by City of Dallas. The initial cost is determined to be $900,000. The future savings are estimated as shown in the following table. The interest rate is 12% annual. Cash Flows Year 0 -900,000 200,000 2 200,000 200,000 4 200,000 5 200,000 300,000 a. Find The B/C ratio for this investment by using PW b. Find The B/C ratio for this investment by using EUAW c. Find The B/C ratio for this investment by using FW