Brianna has a bag of marbles that are all the same size. Of all the marbles in the bag, there are 6 red, 7 white, 3 black, and 4 green marbles. Find the probability of each below. Use the probability to predict how many times Brianna would pick a green marble if she chose a marble 50 times. Give the probabilities as simplified fractions.

How many real and imaginary solutions does the equation x^2-3x=-2x-7 have?

What is the range of the relation in the table below? x y –2 0 –1 2 0 4 1 2 2 0

Me max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.