ASVAB Math Help with Types of Angles

In my ASVAB prep course, I review the types of angles as a part of the geometry review in my class.  As an ASVAB tutor working to provide ASVAB math help to my students, I review the subtopic of angles and slope.  This question asks what the supplement of a  60 degree angle is.  To answer this one correctly, you need to know what supplementary angles are.

Can you answer this question?

The answer will be explained tomorrow.