How many real solutions are there to the equation x2 − 9x + 5 = 0?​

Which region represents the solution to the given system of inequalities? |-0.5x+y23 | 1.5x+ys-1 5 4 -3 -2 -1 1 2 3 4

Angela took a general public aptitude test and scored in the 88th percentile for aptitude in accounting. what percentage of the scores were at or below her score?

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?