<p>A quick search of “Dartmouth ap credit” found me this link, which seems to have a pdf attached that will answer your questions about Dartmouth: [AP</a>, IB, A-Level, & Transfer Credits & Placement](<a href=“Apply to Dartmouth | Dartmouth Admissions”>Apply to Dartmouth | Dartmouth Admissions)</p>
<p>I don’t know anything about the difficulty at WashU, though.</p>