1. Find the optimum replacement interval AND the minimum EUAC for each of the scenarios below. Make sure to show your calculations to at least on n to get credit. a. $225,000 is invested in equipment having a salvage value that decreases by 25% per year (hence, its salvage value equals to $225,000(0.75") after n years of use). O&M costs equal $45,000 the first year and increase by $15,000 per year. Consider a MARR of 10%. EUAC Im Ist in con loo lo