What is the measure of Angle Y?

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?

Use the data on the dot plot to answer the question. how many people read for more than three hours last week? i'm on a unit test review

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?