<p>I signed up for calso on july 5th and 6th</p>
<p>is there a possibility of chem 1a and espm 50ac will still be open? </p>
<p>Also what is the difference between math 1a and 1b. </p>
<p>I dont know if ill be prepared for 1b. I got a 4 on calculus ab on my ap test. </p>
<p>What is 1a about?</p>
<p>Thanks</p>