In order to plant navel oranges, Master Zhang borrowed 30,000 yuan from the bank for five years, with an annual interest rate of 7.2%. How much should Mr. Zhang repay the bank principal and interest after the maturity date?
张师傅为了种脐橙在银行贷了30000元五年期的款，贷款年利率是7.2%．到期后，张师傅应偿还银行本息共多少元？
<gadget id="calculator">7.2 / 100</gadget>
<output>0.072</output>

<gadget id="calculator">30_000 * 0.072 * 5</gadget>
<output>10_800</output>

<gadget id="calculator">10_800 + 30_000</gadget>
<output>40_800</output>

<result>40_800</result>