Abag contains 3 red marbles 5 yellow marbles and 4 marbles one marble is chosen at random what is the probaility that the chosen marble will not be red

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square

What is the area of the shaded sector?