Alt A 3000 1350 1800 1500 25% 841.85 7. (20 pts) EOY Alt B B-A -9000 2850 4425 4830 15% 12,000 4200 6225 6330 17.43% 1718.63 IRR NPV(10%) 7a. (4 pts) if MARR 10%, find the present worth of B-A 7b. (6 pts) The following graph is i vs. NPV for Alternatives A and B. On the graph, clearly label the IRR of A, IRR of B, and the IRR of B-A i vs. NPV 5000 3000 2000 1000 10% 12% 14% 10% 18% 20,-22, 0% 2% 4% 6% 8% 24% 26% 28% 30% 10" 2000 D00 7c. (4 pts) Given the graph and information above, find the exact value for the NPV of A at 0% interest 7d. (6 pts) Give the ranges of MARR () where A would be preferred, where B would be preferred and where neither would be preferred