David recieved $50 for working at his dads store. he spent $20 at the movies, and $10 buying a comic books. after buying $5 worth of candy, he saved the rest. what was the ratio of the amount of david spent to the amount that david saved?

The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? probability distribution px(x) 6 hours 7 hours 8 hours 9 hours 10 hours 0.62 0.78 пол