Hats and mittens are on sale at the store! one woman was able to buy 5 hats and 4 pairs of mittens for $30.
another woman purchased 3 pairs of mittens and 2 hats for $19. find the price of one hat (x) and one pair of
mittens (y).

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) .