Which is the equation of a line that has a slope of 4 and passes through point (1, 6)? y = 4x – 2
y = 4x + 6
y = 4x + 2
y = 4x – 3

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?