Challenger Operating and Life in Years Salvage Value Maintenance Costs SHOTDOO 64.000 $12.000 51,200 14. 400 40.960 17,280 32, 768 20,736 26,214 20,972 29,860 16, 717 ZER SE 12. 422 42.998 10.737 51, 598 Defender Operating and Life in Years Salvage Value Maintenance Costs $48.000 36.500 $17,100 19.875 21,200 15 646 28,806 6, 752 33,779Northwest Aerocomposite manufactures fibreglass and carbon fibre fairings. |ts largest waterjet cutter will have to be replaced some time before the end of four years. The old cutter is currently worth $48,000. Other cost data for the current and @placement cutters can be found in the tables that follow. The MARR is 15 percent. What is the economic life of the new cutter. and what is the equivalent annual cost for that life? When should the new cutter replace the old? g Click the icon to view the tables of salvage values and maintenance costs for the defender and the challenger. F==Jf Click the icon to view the table of compound interest factors for discrete compounding periods when i = 16%. The economic life of the new cutter is D years. The old cutter should be 1' (Type a whole number.)