Anyone have a answer to this problem?

The difference between tax advoidance and tax evasion

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?

If 3 3/4 lb. of candy costs 20.25 how much would 1lb. of candy cost