At heb steaks are normally 12$ per pound but this week they are on sale for 9$ per pound what is the percent decrease in price

Which expression is equivalent to 2x^2+7x+4?

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions.a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0

Zahra runs a 500-meter race at a constant speed. which graph shows her distance from the finish line during the race?