B. Jiden Inc. bought a fake-ballot machine 4 years ago at $24,000, with an 8-year estimated life and $1200 end-of-life salvage value. The average annual operating and maintenance (OM) costs have been $14,000 and will continue at this for the next 4 years. Annual revenues have been and will continue at $20,000. The company can trade in the old machine now for $9,000 to buy a new machine, costing $30,000, with an estimated 8-year life, $7500 annual OM costs, and $13,000 annual revenues. Salvage values at the end of the jth year follow: S; = $15000 - $1500j, for j = 1, ..., 8 Using a 12% MARR compounded annually and a 4-year planning horizon, determine whether to replace now or not