Mom deposits 8,000 yuan in the bank for a period of three years with an annual interest rate of 5.85%. After deducting 5% interest tax after maturity, how much is the total amount of principal and after-tax interest?
妈妈将8000元存入银行，存期三年，年利率是5.85%，到期后扣除5%的利息税，可得本金和税后利息共多少元？
<gadget id="calculator">5.85 / 100</gadget>
<output>0.0585</output>

<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">1 - (1/20)</gadget>
<output>19/20 = around 0.95</output>

<gadget id="calculator">8_000 * 0.0585 * 3 * (19/20)</gadget>
<output>1_333.8</output>

<gadget id="calculator">8_000 + 1_333.8</gadget>
<output>9_333.8</output>

<result>9_333.8</result>