Round to the Nearest Tenth: 29

This is so harddd! solve. 1 + 1 = solve 4 + 4 = solve 3 x 3

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?

How far could you drive on 50 gallons of gas