please do 8.15 please do the formula steps instead of excel. I need help with how to put them in the formula with a simple answer.. thanks

should be selected 8-15 Consider four mutually exclusive and a do-nothingAnn Salv alternatives, each having an 10-year useful life: $1000 $800 $600 $500 First cost Uniform annual 125 120 100 125 benefit Salvage value 750 500 250 0 8-19 (a) Construct a choice table for interest rates from 0% to 100% (b) If the minimum attractive rate of return is 8% which alternative should be selected