Calculate the B/C ratio for the following cash flow estimates at a discount rate of 7% per year , convert all cash flows to AW values Cash Flow Item FW of benefits, S 30,800,000 AW of disbenefits, S per year 105,000 First cost, S 1,200,000 M&O costs, S per year Life of project, years 400,000 20 8 points Savec A plant produces 15,000 units/month. Find breakeven level if FC = $75,000 /month, revenue is $8/unit and variable cost is $2.50/unit 7500