An eagle is flying 30 feet above sea level and spots a fish swimming 2 feet below sea level. What does zero represent in this situation?

A. the height of the eagle

B. The ocean floor

C. Sea level

D. The depth of the swimming fish

pls help im doing a test and i dont understand this

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?