Please help I don’t know how to do this

Can someone me with this problem . show your work .

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?

In a timed typing test lara typed 63 words per minute.estimate the number of words she should be able to type in half in hour show your work