What is the scale factor from Figure 2 to Figure 1?

What is the quadric regression equation that fits these data

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

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?