only need 26 and 28. please show work

26. Compute the price of a $100,000 par value bond with a coupon rate of 17.5% (semi-annual payments) and 35 years remaining to maturity. Assume that the current yield to maturity on the bond is 18.60%. 27. Compute the yield to maturity of a $1,500 par value bond with a coupon rate of 7.5% (quarterly payments - that is, four times per year) that matures in 15 years. The bond is currently selling for $1,256.00 28. What is the yield to maturity of a $1,000 par value bond with a coupon rate of 9.5% (semi-annual coupon payments) that matures in 28 years assuming the bond is currently selling for $1038.13