<p>Does anyone know the problem #18 on Section 3 in the open-ended math section in March 2005? (I can't read it)</p>
<p>Also, do you just use the "Correct answers and Difficulty Levels" in the back as their sole source for the answers or is there a better place with extended reasoning for the correct solution?</p>
<p>Pirated tests are illegal. Unless you're reading a scanned pdf, I don't know why the question would be illegible. Sorry, but we're not allowed to discuss pirated materials on here.</p>