help with submitting act scores!

<p>When you're supposed to submit your ACT scores to McGill, there's one that says "ACT Sum of Score." I have NO idea what that means, and the application is due tomorrow.
Can someone please explain to me what that is, and if I should worry about it.</p>

<p>wait... why are you saying the application is due tomorrow? thought the appl was due the 15th</p>