Irving manz works for ben's food market. he is paid weekly on the basis of a 40-hour week at the rate of $8.95 and hour with time-and-a-half for overtime. during one week he works 40.95 hours. how many overtime hours did irving work?

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?