If 2x + z = 2y and 2x + 2y +z = 2O, what is the value of y?

Find the missing part. use an improper fraction for your answer.

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 equation for the function that includes the points (1,4/5) and (2,2/3)