Yield to Maturity and Call with Semiannual Payments

Thatcher Corporation's bonds will mature in 18 years. The bonds have a face value of $1,000 and an 8.5% coupon rate, paid semiannually. The price of the bonds is $950. The bonds are callable in 5 years at a call price of $1,050. What is their yield to maturity? What is their yield to call? Do not round intermediate calculations. Round your answers to two decimal places.