<p>I just got a letter from ETS stating the explanation to why the circle question is 15 pi, for those of you who were debating 8 pi or otherwise. The explanation is as follows:</p>

<p>The figure consists of one circle, referred to as "the largest circle," divided up into several regions. All of the regions are inside the largest circle. All but one of the regions are outside of the smallest circle. The only region not outside the smallest circle is the region inside the smallest circle. The total area of the regions inside the largest circle and outside the smallest circle is the area of the largest circle minus the area of the smallest circle. The correct answer is thus choice (E), 15 pi. </p>

<p>As a side note, for those of you who were debating 1/2 or 2 for the k/m question, the answer was (C), 1/2. If 1/k < 1/m < 0 and k = -2 and m = -4, then k/m = -2/-4 = 1/2.</p>