The Scampini Supplies Company recently purchased a new delivery truck. The new truck has an after-tax cost of $21,500, and it is expected to generate after-tax cash flows of 65.250 per year. The truck has a 5 year expected life. The expected year-end abandonment values (after-tax salvage values) for the truck are given below. The company's WACC is 11%. 4. What is the truck's aptimal ecanamic life? Rlound vour answer to the nesrest whole number. rear(s) b. Wovid the introduction of abandonment walus, in addion to operating cash flows, ever reduce the expected MFV and/or iaht of a project