Triangle ABC is dilated by a scale factor of 2 with a center of dilation at the origin to create AA'B'C'
What are the coordinates of the vertices of AA'B'C'?

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?