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Plot the points (0,6), (3,15.8), and (9.5,0) using the graphing tool, and find the function

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 is the measure of the smallest angle in the diagram? 15 29 32 45