help!

please show how to do the problem. If a financial calculator can be used, please show how. thank you

Term Structure A 1-year Treasury bill currently offers a 4% rate of return. A 2-year Treasury note offers a 4.5% rate of return. Under the expectations theory, what rate of return do investors expect a 1-year Treasury bill to pay next year? %. (Round to two decimal The rate of return investors expect a 1-year Treasury bill to pay next year is places.)