Answer: The U.S. Treasury Series I Savings Bonds are 30-year instruments whose interest rate is reset every six months and are a way to help protect one from inflation. The rate is a combination of an inflation calculation over a six-month timeframe and a fixed rate determined by the Treasury Secretary. With inflation increasing this year to multi-decade highs, the inflation calculation for I Bonds bought until April 30, 2022, pay 7.12% for six months.
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