Alibrary is having a book sale to raise money. hard cover books cost $4 each and paperback books cost $2 each. a person spends $26 for eight books. how many hard cover books did she purchase?

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

The surface area of the triangular prism is .

This summer the number of tourists in salem increased 4.5% from last years total of 426000. how many more tourists came to salem this summer