Abag contains 23 marbles, of which 4 are blue and 8 are green. one marble is drawn from the bag. what is the probability that the marble drawn is not blue?

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500