please we cant use excel

1. A 15-year maturity, 8% coupon bond is callable in years at a call price of $1,050. The bond currently sells at yield to maturity of 7% a. What is the yield to call ? b. What is the yield to call if yield to maturity 9%? (27) fn 2. Consider a 6% coupon bond is selling for 950 with 2 years to maturity, making annual payment. The interest rate will be 15%. Calculate realized compound yield of the bond (2 /)