Can I get questions 18-19 solved?

18. A 6% coupon U.S. treasury note pays interest on May 31 and November 30 and is traded for settlement on August 10. The accrued interest on $100,000 face amount of this note is A) $581.97 B) $1,163 C) $2,327.87 D) $3,000.00 Answer: B Difficulty: Medium 19. What is the invoice price of the above mentioned bond, assume that it has 3 years to maturity and market interest rate is 10%. A. 91,012 B. 106,239 C. 82,579 D. 83,743