If p(x)=x^2-1 and q(x)=5(x-1), which expression is equivalent to (p-q)(x)

5(x-1)-x^2-1
(5x--1)
(x^2-1)-5(x-1)
(x^2-1)-5x-1

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0

The track team ran a mile and a quarter during their practice how many kilometers did her team runs?

An equation in slope-intersept form the lines that passes thought (-8,1) and is perpindicular to the y=2x-17.