The current price of a 20-year bond with a 9% annual coupon rate is $968. The bond is callable after 10 years with a call price of $1,185. If interest payment is made annually, a) what is the bonds yield to maturity? b) what is the bonds yield to call? c) If interest payment is made semi-annually, d) what is the bonds yield to maturity? e) what is the bonds yield call?

Please use financial calculator inputs or formula, no excel. Thank you