The annual interest rate of the three-year treasury bill is not 3.4%. If a person buys a treasury bill of 9,000 yuan, how much will it be with the principal and interest at maturity?
三年期国库券的年利率不3.4%，某人购买国库券9000元，到期连本带息共多少元．
<gadget id="calculator">3.4 / 100</gadget>
<output>0.034</output>

<gadget id="calculator">9_000 * 0.034 * 3</gadget>
<output>918</output>

<gadget id="calculator">9_000 + 918</gadget>
<output>9_918</output>

<result>9_918</result>