Question 4 20 pts A ganja farmer bought a spliff-powered fork-lift truck 4 years ago for $8,000. At that time, the estimated useful life was 8 years with a salvage value of $800 at the end of this time. She can sell the truck now for $2,500. For this truck, average annual operating expenses for year have been G = $800 + $200(- 1) Now the farmer is considering buying a smaller collie-powered truck for $6,500. The estimated life is 10 years, with the salvage value decreasing by $600 each year from its original price. Average annual operating expenses are expected to be $1,200. Assume a 10% MARR and adopt a 4-year planning horizon. Should she replace the fork-lift now