Austin earns both a monthly salary and a commission. His monthly salary is $3000. He earns a 5% commission on what he sells. In November, he sold $18,000 worth of product. What will Austin's total pay be for November?

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?