If 5y = 1 over 25, what is y?

Anyone know? will mark brainliest if you're correct!

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?

True or false look at the picture pls : /