Highest average in school but failed a college course (not AP)

<p>I didn't have time to take the final due to AP exams so I failed the class
I wouldn't be caring but THE FAILING GRADE IS ON MY TRANSCRIPT
I messaged the admins in my school and they seem to be ignoring my inquiry
Should I explain it to the colleges I'm going to apply to or just act like I passed the class?</p>