What is 2 divided by 1/5?

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?

What numbers are included in the set of integers? what numbers are not included?

Write the standard form of an equation with (see picture below)