Exercise 16-12A (Algo) Determining the payback period LO 16-4 Walton Airline Company is considering expanding its territory. The company has the opportunity to purchase one of two different used airplanes. The first airplane is expected to cost $11.730,000; it will enable the company to increase its annual cash inflow by $5,100,000 per year. The plane is expected to have a useful life of five years and no salvage volue. The second plane costs $40.480,000, it will enable the company to increase annual cash flow by $8,800.000 per year. This plane has an eight-year useful life and a zero salvage value Required a. Determine the payback period for each investment alternative and identify the alternative Walton should accept if the decision is based on the payback approach (Round your answers to 1 decimal place.) Payback Period --1. Alternativo 1 (First plano) Alternative 2 (Second plano) 0-2 Walton should accept years years Exercise 16-14A (Algo) Determining the unadjusted rate of return LO 16-4 Zachary Painting Company is considering whether to purchase a new spray paint machine that costs $2,800 The machine is expected to save labor, increasing net income by $280 per year. The effective life of the machine is 15 years according to the manufacturer's estimate Required a. Determine the unadjusted rate of return based on the average cost of the investment (Enter your answer as a whole percentage (e.g. 0.55 should be entered as 55).) Unadjusted rate of totum %