I need help in this question. Please I also posted the solution to same question with different values. Please use same method and solve both so i can get correct answers

4: If the MARR is 8.7%, how many years of useful life must Robocop2 have to be financially the same as Robocop1? Use annual Benefit Cost analysis. RoboCop1 RoboCop2 Cost $155,000 $193,750 UAB $44,563 $40,688 Useful life (vrs) 6 ? Answer: Reasoning/Work (to within one hundredth year like 12.67) 5: Consider again Problem 9-56 (above) if we made these changes: Note! changes in part a) do not transfer to part b). a) What if Robocop2 cost was $232,500? Answer: _(to within one hundredth year like 12.67) Reasoning/Work b) What if Robocop2 annual benefit is $49,530? Answer: _(to within one hundredth year like 12.67) Reasoning/Work 9-56: If the MARR is 10%, how many years of useful life must Robocop2 have to be financially the same as Robocop1? Use annual Benefit - Cost analysis. Robocop1 Robocop2 Cost $155,000 $193,750 UAB $44,563 $40,688 Useful life (yrs) 7 ? Answer: 12.39 years Reasoning/Work: (EUAB - EUAC)Robocopa = 44,563 - 155,000(A/P 10%, 7) = $12,725.15 So to "financially the same" (EUAB - EUAC)Robocopz = $12,725.15 which means that 40,688 193,750(A/P,10%,X) = $12,725.15 and using the TI-83 TVM Solver gives X = 12.39 years 9-57:Consider again Problem 9-56 (above) if we made these changes: Note! changes in part a) do not transfer to part b). a) What if Robocop2 cost $232,500? Answer: 18.68 years Reasoning/Work: 40,688 - 232,500(A/P,10%,X) = $12,725.15 TI-83 TVM Solver givers n = 18.68 years b) What if Robocop2 annual benefit is $49,530? Answer: 7.84 years Reasoning/Work: 49,530 - 193,750(A/P,10%,x) = $12,725.15 TI-83 TVM Solver givers n = 7.84 years and the to