the total rent for a fourplex is $ 4 0 0 0 a month. the annual vacancy rate is 1 0 % . additional income.of $ 1 0 0 0 is earned annually from parking meter fees. annual operating expenses are $ 1 1 , 0 0 0 . if the appraiser determines thr market area cap rate at 1 0 % , what is the market value.of . the.property