The distance formula is d = (x^2 + y^2)^(1/2) This is the same equation used for both. In other words, the equation of a circle gives the radius of the circle in terms of x and y, while the distance formula gives the distance from the origin to the final point in terms of x a
(5,7) (5,4) (7,4) hope that helps
Answer: 384
There are 384 smoke free rooms.