An urn contains 2 red, 3 white, and 4 black balls. One ball is drawn from the urn, it is not replaced, and a second ball is drawn. (Enter your probabilities as fractions.) (a) What is the probability that both balls are white?

(b) What is the probability that one ball is white and one is red?

(c) What is the probability that at least one ball is black?

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.