Answer:
46 degrees
Explanation:
It's just 85 - 39 = 46 degrees, because that's how many degrees are between those two places.
Think of a protractor as just a curved number line: if they told you that a line went through a number line at 39, and another one at 85, what would be the distance between them? Just 85 - 39, right? Same idea here.
Btw, congrats on your first question!