After installing circulating water equipment in a car wash, a total of 1.14 tons of water can be saved a day. According to this calculation, how many tons of water can this car wash save in a week? (calculated as 7 days a week)
一个洗车场安装了循环水设备后，一天共节约1.14吨水，照这样计算，这个洗车场一周可以节约用水多少吨水？(一周按7天计算)
<gadget id="calculator">1.14 * 7</gadget>
<output>7.98</output>

<result>7.98</result>