Make b the subject of the formula a = b + 6

John bought 5 lemons and used 2 of them for a salad how much did he use for.a salad . he used % of the lemons.

Can you simplify 4/7? 24 points will be awarded!

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