Proprac 4 done without the use of excel

. An environmental engineer is considering three methods for disposing of a nonhazardous chemical sludge: land application, fluidized-bed incineration, and private disposal contract. The details of each method are shown below. Land Application ncineration 110,000 ontract First cost $ nnual cost, S/year 95,000 Salvage value, $ 15,000 Life,years 800,000 60,000 250,000 6 190,000 a. Determine which has the least cost on the basis of annual worth. Use an interest rate of 10% per year