e following information was extracted from the Finance Department of a Chemical Plant Sales revenues $6,500,000/yr Working capital $50,000 (at start-up) FCIL $5,000,000 Salvage value $2,000,000 Start-up at the end of year 1 Depreciation method Straight line Tax rate 25% Internal rate of return 8% Summary of utilities used Electric power 50 kW High Pressure steam 1.0 kg/s Medium Pressure steam 1.0 kg/s Cooling water 0.15 m/s 5 yr Plant operating life Number of equipments Stream factor Annual salary Raw materials Waste treatment 15 (non-particulate) 0.95 $25,000/worker $1,000,000/yr $10,000 A. Draw a cumulative (nondiscounted) after-tax cash flow diagram. (40 pts) B. Determine the payback period. (5 pts) C. Determine the rate of return on investment. (5 pts)