Alley had to dicks times 5

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?

Which of the following graphs could represent a cubic function?

Which diagram shows lines that must be parallel lines cut by transversal?