What is the price of a $1,000 par value, semi-annual coupon bond with 13 years to maturity, a coupon rate of 6.66% and a yield-to-maturity of 5.37%?

What is the price of a $1,000 par value, 19 year, annual coupon bond with a 6.79% coupon rate and a yield to maturity of 3.95%?

You bought a 22-year, 7.13% semi-annual coupon bond today and the current market rate of return is 3.79%. The bond is callable in 7 years with a $64 call premium. What price did you pay for your bond?