What are the coordinates of the point on the directed line segment from (-4, 3)(−4,3) to (-2, -5)(−2,−5) that partitions the segment into a ratio of 1 to 3?

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?