At Mountain Park Middle School, there are 250 seventh-grade students. Currently, 32% of those students are in advanced math. A. Write an equation to represent the number of seventh-grade students who are not in advanced math. Let a represent the number of seventh-grade students who are not in advanced math.

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) .