A regular field is four times as long as it wide. If the perimeter of the field is 300 yards, what is the fields dimensions

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

What is the anwers for 9+2x=5x-3-x

Explain how you can find the missing fraction in 3 4/5 / (blank) 2 5/7. then find the missing fraction.