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.
The national average price for regular unleaded gasoline is $2.29 per gallon, and motorists are saving 11 cents per gallon compared to one week ago, 49 cents compared to one month ago and $1.02 per gallon compared to this same date last year.