How can this be done on EXCEL? Please show all formulas!

2. You are a member of an engineering proiect team that is designing a new processing facilitv. Your present design task involves the portion of the system that requires pumping a slurry that is corrosive and contains abrasive particles. For final analysis and comparison, you have narrowed it down to two pump units of equal output capacity, from different manufacturers. Both will provide the same level of service, but have different useful lives and costs. SP240 $33,200 HEPS9 Capital investment $47,600 Annual expenses Electrical energy $2165 $1720 $1100 in year 1 and increasing $500/yr thereafter 5 $500 in year 4 and increasing $100/yr thereafter Maintenance Useful Life (years) Salvage value at end of useful life $0 $5000 (a) If the MARR is 20%, which pump should you select(use an annual worth calculation)? (b) What would the capital cost of SP240 have to be such that the firm would be indifferent to pump selection