If a ship dumped 10.8 million gallons of oil into the open ocean, how many square miles of ocean would be covered by an oil slick that is .5mm thick?

Answer 1

I would convert 10.8 million gallons to cubic millimeters. Use conversion factors for that. Then you know volume = area x depth so divide the volume by 0.5 mm to obtain the area in square millimeters. Than convert square millimeters to square miles. Again, use conversion factors for that. You can find these factors at
http://www.onlineconversion.com/