Determine if the equations are parallel, perpendicular, or neither. y = 5/4x + 1 and y = 5/4x - 7

The point a is at –2 and the point b is at 7. marissa would like to divide this line segment in a 4: 3 ratio, and she would like to use the formula x = (x2 – x1) + x1. what values should she substitute into the formula? a = a + b = x1 = x2 =

The probability that a tutor will see 0, 1, 2, 3, or 4 students is given below determine the probability distribution's missing value.

Me i’m stuck on all these questions besides the two bottom ones