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.
2015 is set to be different. During the summer of 2015, the average national gas price hovered around 2.6 U.S. dollars per gallon, and fell to a record low of 2.51 U.S. dollars per gallon in the first week of September.n 1995, one gallon of regular gasoline cost 1.11 U.S. dollars. In 2014, one gallon of regular gasoline cost 3.36 U.S. dollars. Customers in Norway, Turkey and Hong Kong are charged the highest gas prices around the world.