The length of the Mississippi River is approximately 2,320 miles (3,730 km), slightly shorter than the Missouri River. The Mississippi and Missouri Rivers combine to form the longest river system in the USA and North America. It is also the fourth longest in the world.
The national average price for regular unleaded gasoline sits at $2.16 per gallon, which is the lowest mark since April and the lowest price for this date since 2004. Todayâs price is five cents less than one week ago, 15 cents less than one month ago, and 56 cents less than the same date last year.
Philadelphia area households paid an average of 15.9 cents per kilowatt hour (kWh) of electricity in July 2015, unchanged from the price in July for the previous three years. The average cost of utility (piped) gas at $1.038 per therm in July was 16.0 percent below its price of $1.236 per therm a year earlier.(Data in this release are not seasonally adjusted; accordingly, over-the-year-analysis is used throughout.).he average cost of utility (piped) gas at $1.038 per therm in July was 16.0 percent below its price of $1.236 per therm a year earlier. (Data in this release are not seasonally adjusted; accordingly, over-the-year-analysis is used throughout.).