A rectangular swimming pool has a length of 24 feet and a width of 18 feet. A hose needs to extend from the southwest corner of the pool to the northeast
corner of the pool. How long does the hose need to be?

The weekly amount spent by a company for travel has an approximately normal distribution with mean = $550 and standard deviation = $40. a) what is the probability that the actual weekly expense will exceed $570 for more than 20 weeks during the next year? (note: one year = 52 weeks) b) what is the probability that actual weekly expenses exceed $580 for 10 or more, but 16 or fewer weeks during the next year?