On a coordinate plane, a line goes through (negative 4, 4) and (4, negative 2). A point is at (6, 0). What is the equation of the line that is perpendicular to the given line and has an x-intercept of 6?

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?