9. A coupon bond that pays interest of $63.69 annually has a par value of $1,000, matures in 7 years, and is selling today at a $84.42 discount from par value. What is the current yield on this bond? Enter answer as percents.

10. A coupon bond that pays semiannual interest is reported in the Wall Street Journal as having an ask price of 111% of its $1,000 par value. If the last interest payment was made 94 days ago, and this interest period has 183 days, and the coupon rate is 5.28%, what is the invoice price of the bond?