When talking stats. Mean and standard deviation, how do you solve for x with no z score?

What signals you that factoring by grouping is the best method to use when factoring a problem?

What expression is equivalent to (2x-1)(x-3)?

Which of the following equations is of the parabola whose vertex is at (2, 3), axis of symmetry parallel to the y-axis and p = 4? a.)y-3 = 1/16 (x-2)^2 b.)y+3 = -1/16 (x+2)^2 c.)x-2 = 1/16 (y-3)^2