Plaaaseee . i need to find the exterior angle measurement. i will mark brainliest

Mary beth used the mapping rule to find the coordinates of a point that had been rotated 90° counterclockwise around the origin. examine the steps to determine whether she made an error. m (3, –6) is rotated 90° counterclockwise. (x, y) → (–y, x) 1. switch the x- and y-coordinates: (6, –3) 2. multiply the new x-coordinate by –1: (6(–1), –3) 3. simplify: (–6, –3) .

F(x)= 4x g(x) =x-1 what is f(x) divided by g(x)

Which expression gives you the distance between the points (5,1)and(9,-6)