What is probability of randomly selecting a marble and getting black or red? a bag contains 5 black marbles, 10 red marbles, and 20 blue marbles?

7(x - 2) = 3(x + 4) solve the following equation. then enter your answer in the space provided using mixed number format.

If the angle bisectors of a pair of opposite angles of a quadrilateral are the opposite sides of a parallelogram formed by the two angle bisectors and two sides of the quadrilateral, is the quadrilateral always a parallelogram? explain your answer.

Given that (6,9) is on the graph of f(x), find the corresponding point for the function f(x - 2). enter the correct answer.