Ineed right now

(25 points on whoever gets this right)

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

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 not true about kl and mn? what is mn? (show )