Determine the ROR, AW, and PP of the following engineering project when the MARR is 20% per year. Is the project acceptable? Engineering Project Details Investment cost $60,000 Expected life years Annual receipts $15,000 Annual expenses $2,675.40 a. The Rate of Return of the project is ? Write the answer in percentage value, up to 2 decimal places. b. How much is the cash flow excess? Roundoff answer to the whole number. c. The payback Period is Write the answer in two decimal places