Agardener is mowing a 20 yd-by-40 yd rectangular pasture using a diagonal pattern. he mows from one of the pasture to the corner diagonally opposite. what is the length of this path with the mower ? give your answer in simplified form .

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?