ataxia fitness center is considering an investment in some additional weight training equipment. the equipment has an estimated useful life of 5 years with no salvage value at the end of the 5 years. ataxia's internal rate of return on this equipment is 6%. ataxia's discount rate is also 6%. the payback period on this equipment is closest to (ignore income taxes.): click here to view exhibit 14b-1 and exhibit 14b-2, to determine the appropriate discount factor(s) using the tables provided.