1.5 yuan per rose. 3.8 yuan per lily. Xiao Qiao bought 5 roses and 3 lilies, how much did she have to pay in total?
每枝玫瑰花1.5元．每枝百合花3.8元．小巧买了5枝玫瑰和3枝百合，她一共要付多少元？
<gadget id="calculator">1.5 * 5</gadget>
<output>7.5</output>

<gadget id="calculator">3.8 * 3</gadget>
<output>11.4</output>

<gadget id="calculator">7.5 + 11.4</gadget>
<output>18.9</output>

<result>18.9</result>