Solve. y=3x – 4
9x – 3y = 14
Use the substitution method.
O The solution is (12, 14).
O The solution is (14, 12)
O There is no solution.
O There are an infinite number of solutions.

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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?