#10 and #11 HELP please

10. 11. Tort, Inc has issued a two-year bond with a yield of 6% per annum. The yield in its one-year bond is 4.5%. If it plans to issue one-year bonds next year, what is the expected yield on this bond The yield on a 5-year Treasury Bond is 3.76% and the yield on a rare 4-year Treasury bond is 5% What is the expected one-year interest rate on a 1-year T-Bill in four years