Abag contains 10 red marbles, 5 gray marbles, 12 black marbles, and 8 white marbles. two marbles are randomly drawn from the bag without replacement. what is the probability of drawing a black marble followed by a red marble?

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%

Justin has 750 more than eva and eva has 12 less than justin together they have a total of 63 how much money did

What is negative 3/9 times negative 2/8 ?