What is the equivalent monthly mortgage rate for an annual mortgage rate of 2.45%? The mortgage is compounded semi-annually. 0.187% 0.203% 0.220% O 0.170% None of the options listed What is the balance remaining on a 25-year $750,000 mortgage with a nominal interest rate of 2.45% after 18 months? Assume that interest is compounded semi-annually and payments are made twice a month. $716,712 None of the options listed $733,508 $727,943 $739,039