If you use the formula it states Assessed Value = Market Value x Rate. Assessed value = 125000 Rate = 42In addition to the rate, you must divide 42 by 100, which makes .42 then add 1. 42/100 = 0.42 + 1 = 1.42 125000(1.42) = 177500 $177,500 is Miriam's assessed value of her house.