Determine the opportunity cost of capital for a company with the following list of projects: Life Annual Benefit Salvage Value Project First Cost 250,000 $ 20 $ 20,000 $ 4,000 18 $ 180,000 $ 18,000 $ 3,600 16 $ 160,000 $ 16,000 $ 3,200 3 14 $ 140,000 $ 14,000 $ 4 2,800 12 $ 120,000 $ 12,000 $ 2,400 a.) with a $400,000 capital budget b.) with a $750,000 capital budget