Aunt Wang bought 5,000 yuan of national construction bonds, fixed for 3 years. If the annual interest rate is 2.89%. How much is her total principal and interest at maturity?
王阿姨买了5000元的国家建设债券，定期3年．如果年利率是2.89%．到期时她本金和利息一共多少元？
<gadget id="calculator">2.89 / 100</gadget>
<output>0.0289</output>

<gadget id="calculator">5_000 * 0.0289 * 3</gadget>
<output>433.5</output>

<gadget id="calculator">5_000 + 433.5</gadget>
<output>5_433.5</output>

<result>5_433.5</result>