The Deweys' car gets 20 miles per gallon (mpg).	The Stones' car gets 30 miles per gallon (mpg).	The Webers' car gets 15 miles per gallon (mpg).	The Golds' car gets 24 miles per gallon (mpg).

Four families traveled from different places to vacation together at a lake.

• The Deweys drove 210 miles.
• The Webers drove 50 miles less than the Deweys drove.
• The Golds drove 100 miles more than the Webers drove.
• The Stones drove 110 miles more than the Webers drove.

The drawing shows the gas mileage for each family's car.

How many gallons of gas did each family use to get to the lake? (Round answers to the nearest tenth.)