What is the scale factor from polygon ABCD to polygon PQRS?

What are the domain and range of the function? f(x) = -4 (sqrt)x

The physical fitness of an athlete is often measured by how much oxygen the athlete takes in (which is recorded in milliliters per kilogram, ml/kg). the mean maximum oxygen uptake for elite athletes has been found to be 60 with a standard deviation of 7.2. assume that the distribution is approximately normal.

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles