Abag contains 9 marbles: 4 are green, 2 are red, and 3 are blue. laura chooses a marble at random, and without putting it back, chooses another one at random. what is the probability that both marbles he chooses are red? write your answer as a fraction in simplest form.

Suppose a store sells an average of 80 cases of soda per day. assume that each case contains 24 cans of soda and that the store is open 10 hours per day. find the average number of soda that the store sells per hour.

What percent of 18 is 24? and plz explain thx.

Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is . reset next