(Components of annuity payments) You've just taken on a 25-year $180,000 mortgage with a quoted interest rate of 5 percent calling for payments semiannually. How much of your first year's loan payments (the initial two payments, with the first coming after 6 months have passed, and the second one coming at the end of the first year) goes toward paying interest, rather than principal? a. What is the semiannual payment of your loan