please solve using excel

eBook B The real rate of interest has been estimated to be 2 percent, and the expected long-term annual ination rate is 9 percent Round your answers to the nearest whole number a. What is the current risk free rate of return on 1-year Treasury bonds? b. If the yield on 10-year U.S. Treasury bonds is 13 percent, what is the matunty nsk premium between a 10-year bond and a 1-year dond? Il Delta bonds, scheduled to mature in 10 years, currently sell to yield 14 percent, what is the default risk premium on these bonds? 95 d. If investors in the common stock of Delta require a 15 percent rate of return what is the senionty risk premium on Det's common stock % DE