Help SO Alternative R has a first cost of $97,000, annual M&O costs of $68,000, and a $20,000 salvage value after 5 years. Alternative S has a first cost of $175,000 and a $61,000 salvage value after 5 years, but its annual M&O costs are not known. Determine the M&O costs for alternative S that would yield a required incremental rate of return of 20%. The M&O cost for alternative Sis $