If a figure is dilated by a scale factor of 5/6, the PERIMETER of the figure will change by a factor of (please help)

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?

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2

Find the values of the variables in the kite