Can someone help please

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?

Write an equation for the function that includes the points (1,4/5) and (2,2/3)

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers