What is the area of this trapezoid? Enter your answer in the box. cm2

Can someone check my answer? you : )

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) .

What is the 9th term in the geometric sequence described by this explicit formula? an=-6. (2)(n-1) apex