cancelling scores?

<p>how long do you have to decide whether or not to cancel scores? Just took math 1 - pretty easy and estimating >750. Thought physics was wicked hard and left 5 blank. If I got half of the rest of the questions wrong - what would that score be? I'm estimating high 500's.</p>

<p>Up until Wednesday I believe</p>

<p>ya Wednesday, you got time</p>