For example, (x +1)*(x +1) is a term built from the constant 1, the variable x, and the binary function symbols + and *; it is part of the atomic formula (x +1)*(x +1) â¥ 0 which evaluates to true for each real-numbered value of x.
In recent weeks, the U.S. diesel fuel price has been hovering around $4.16 per gallon. LNG is selling for about $2.92 per diesel gallon equivalent, 30 percent less, according to Clean Energy Fuels' current price report, which is updated weekly.
Residential propane price per gallon averages. While the US average residential propane price per gallon in November 2012 was $2.4 per gallon, the table below shows the average price difference between the two regions the US Energy Information Administration monitors. East Coast. 3.018.