2. What was the percent change in the price of gasoline in Washington D. C. from October 2010
to October 2011? Round to the nearest cent.
Regular Gasoline Price Average
October 2010 October 2011
United States $2.70 per gallon $3.42 per gallon
Washington, DC $2.79 per gallon $3.55 per gallon

To keep cylindrical tanks from tipping over, a designer is planning to enlarge the original area of the base by 50%. the new tank should have the same volume as the original. how should the designer change the height of the tank? a: make it 50% taller than the height of the original tank. b: make it 6623% taller than the height of the original tank c: make it 3313% shorter than the height of the original tank d: make it 50% shorter than the height of the original tank.