O 5. Determining Interest and Approximate Bond Value. Eight years ago, Burt Brownlee purchased a U.S. government bond that pays 4.70 percent interest. The face value of the bond was $1,000. a. What is the dollar amount of annual interest that Burt received from his bond investment each year? b. Assume that comparable bonds are paying 4 percent. What is the approximate dollar price for which Burt could sell his bond? c. In your own words, explain why Burt's bond increased or decreased in value. W