If 4 gallons of milk cost 16.76 how much would 7 gallons of milk cost

Acylinder has volume 45π and radius 3. what is it’s height?

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?

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