Teacher Wang deposited 15,000 yuan in the bank on June 15, 2004, and it will expire on June 15, 2007. The annual interest rate is 2.88%. How much is the total principal and interest at maturity?
王老师于2004年6月15日在银行了存了15000元钱，到2007年6月15日到期，年利率是2.88%．到期时本金和利息一共是多少元？
<gadget id="calculator">2.88 / 100</gadget>
<output>0.0288</output>

<gadget id="calculator">15_000 * 0.0288 * 3</gadget>
<output>1_296</output>

<gadget id="calculator">15_000 + 1_296</gadget>
<output>16_296</output>

<result>16_296</result>