Simplify: x + x + x + x + x + 2x *

Find x & pleeeeaaaassseeee me !

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) .

Arectangle has a width of 5 cm and a length of 10 cm. if the width is increased by 3, how does the perimeter change?