Which of the following is a function? * A. {(2, 5), (5, 2), (0, 0)}
B. {2, 5, –9, 0}
C. {(2, 5), (–9, 0), (–9, 2), (0, –9)}
D. {(2, 5), (5, –9), (2, 0)}

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?

Write an inequality and solve each problem.for exercises 11 and 12, interpret the solution.

Do more republicans (group a) than democrats (group b) favor a bill to make it easier for someone to own a firearm? two hundred republicans and two hundred democrats were asked if they favored a bill that made it easier for someone to own a firearm. how would we write the alternative hypothesis?