The cost of a biomedical image scanning machine is 45000 with an estimated annual maintenance cost of $2500. The machine is projected to save $15000 in direct labor cost annually. Biomedical Analytics Inc. the company who purchased the machine plans to sell it 6 years from now at a price of $8500. a) Draw the cash flow diagram b) Estimate the present worth of the machine at an estimated MARR of 15 % per year. c) Determine the Rate of Return (ROR) if staring with two initial guesses of 18% and 20%