Problem 7-21 (algorithmic) Show Work | Question Help * A firm can purchase a centrifugal separator (5-year MACRS property) for $19,000. The estimated salvage value is $3,500 after a useful life of six years. Operating and maintenance (O&M) costs for the first year are expected to be $1,900. These O&M costs are projected to increase by $1,500 per year each year thereafter. The income tax rate is 21% and the MARR is 16% after taxes. What must the uniform annual benefits be for the purchase of the centrifugal separator to be economical on an after-tax basis? Click the icon to view the GDS Recovery Rates (rx) for the 5-year property class. Click the icon to view the interest and annuity table for discrete compounding when the MARR is 16% per year The uniform annual benefits should be s (Round to the nearest dollar)