A paper mill is considering two types of wastewater reuse equipment: Neutralization Precipitation Initial Investment $ 700,000 $ 500,000 Annual chemical cost $ 220,000 $ 250,000 Annual maintenance cost $ 40,000 $ 110,000 Salvage Value $175,000 $ 125,000 Interest rate 8% 8% Useful life, in years 5 years 5 years a. For the two alternatives, i) Calculate the PW (DO NOT use the AW or FW values); ii) Calculate the AW (DO NOT use the PW or FW values); iii) Calculate the FW (DO NOT use the PW or AW values) b. Which alternative should be purchased? Why