Use the substitution method to solve the system of equations. Write your answer as an ordered pair. y=x-2 and y=-2x+7

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

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 the fraction or mixed number and the decimal shown by the model