Teacher Li took 850 yuan to the cultural and sports store to buy basketballs. He bought 18 basketballs and got back 40 yuan. How much is the price of each basketball?
李老师带了850元钱去文体商店买篮球，买了18个篮球，找回40元．每个篮球的价钱是多少元？
<gadget id="calculator">850 - 40</gadget>
<output>810</output>

<gadget id="calculator">810 / 18</gadget>
<output>45</output>

<result>45</result>