A bag contains 9 red marbles, 6 white marbles, and 3 blue marbles. Find P(red and blue)

What are the values of a, b, and c in the quadratic equation 0 = x2 – 3x - 2? a = 1, b = 3, c = 2 a=, b = -3,c=-2 a = 1, b = 3, c= 2 a = 1.0= -3, c = 2

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

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