Compare aristocrats, farmers, and merchants in the ancient chinese society

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

Find the solution(s) to x^2-14+49=0

The volume of a box varies directly with its length if a box in the group has a length of 30inches and k=24 what is its volume