6-56. The two mutually exclusive alternatives shown in the table are available (“do nothing” is also an option). If the MARR = 15% select the better alternative with an incremental analysis using the IRR method. Given: IRRA = 24.7% and IRRB = 16.6%. State your assumptions. (6.5) A B Initial cost –$9,000 –$6,000 Salvage value 300 0 Cash flow (annual) 3,000 2,700 Life (years) 6 3