What is the Annualized worth of the following systems? I = 6% compounded annually. System A Initial cost 50000 Estimated Lifetime 30 years Maintenance costs 1000 per year Revenue 30,000 per year Salvage value 4000. system B Initial Cost 40000 Estimated Lifetime 90 years Maintenance Costs 4000 year per Revenue 30000 per year Salvage Value 0 If we assume we can use Least Common Multiple Lifetime we can compare them directly. Which is better? What is the least common multiple lifetime in this case