help me solve this please

Even Numbered Breakout Rooms A. Tread-On's 7-year bonds are currently yielding a return of 9.38%. Other determinants are: Expected Inflation Premium is 1.60%; the Real Risk-Free Rate is expected to be 3.75%; Maturity Risk Premium is 0.75% on 2-year securities and increases by 0.08% for each additional year; the Liquidity Risk Premium is 1.25% and there are no special covenants. What is the Default Risk Premium for Tread-On's bonds? B. Tread-On has a semi-annual pay bond with a 6.6% coupon. It matures in 12 years. If market interest rates are 4.8%, what is the price of Tread On's bond