It is -4!
1.8*-20=-36
32-36=-4
I believe the correct answer from the choices listed above is option B. The dilation from A (blue figure) to B (green figure) is an enlargement with a scale factor of 5/2. <span>In two similar geometric figures, the ratio of their corresponding sides is called the </span>scale factor<span>. Hope this answers the question.</span>