An environmental engineer wants to evaluate three different methods for disposing of nonhazardous chemical waste: land application, fluidized-bed incineration, and private disposal contract. Use the estimates below to help her determine which has the least cost at i-10% per year on the basis of an annual worth evaluation. Land $-145,000 $-96,000 $28,000 4 years Incineration $-710,000 $-60,000 $360,000 b years Contract ON First Cost AOC per Year Salvage Value Life 0 $-142,000 0 2 years The environmental engineer selects a (Click to select