What value of x makes this a right triangle ?

Factor this polynomial completely x^2-64

Isabel graphed the following system of equations. 2x – y = 6 y = -3x + 4 she came up with the solution (2,-2). what were the 3 steps she did to get that solution? (make sure they are in the correct order)

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