do not use excel

show all steps for thump up

do not use present worth

use annual worth to find the answer

1. (20 Points) A public agency is considering four mutually exclusive alternatives in addition, the do-nothing alternative is feasible). Use the benefit to cost ratio method to determine which of the alternatives is preferable, given an interest rate of 12% per year. Alternative A B D Initial Cost (SK) Annual Benefit (SK) 100 30 120 35 250 50 175 38 Life (years) 10 5 15 6