The price of 1 kilogram of oranges is 1.6 yuan, and 1 kilogram of bananas is 1.4 yuan more expensive than 1 kilogram of oranges. How much will you pay for 1.5 kg of bananas and 1.8 kg of oranges?
1千克橘子的价钱是1.6元，1千克香蕉比1千克橘子贵1.4元．买1.5千克香蕉和1.8千克橘子，一共要付多少元？
<gadget id="calculator">1.6 + 1.4</gadget>
<output>3</output>

<gadget id="calculator">3 * 1.5</gadget>
<output>4.5</output>

<gadget id="calculator">1.6 * 1.8</gadget>
<output>2.88</output>

<gadget id="calculator">4.5 + 2.88</gadget>
<output>7.38</output>

<result>7.38</result>