please show steps! thank you!

I got 8.3 for the first answer but it was wrong.

Problem 10 Suppose the inflation rate is expected to be 6.15% next year, 4.45% the following year, and 3.2% thereafter. Assume that the real risk-free rate, r, will remain at 2.15% and that maturity risk premiums on Treasury securities rise from zero on very short-term bonds (those that mature in a few days) to 0.2% for 1-year securities. Furthemore, maturity risk premiums increase 0.2% for each year to maturity, up to a limit of 1.0% on 5-year or longer-term T-bonds. 1. Calculate the interest rate on 1-year Treasury securities. Round your answer to two decimal places. 2. Calculate the interest rate on 2-year Treasury securities. Round your answer to two decimal places