The measure of A is 75º. What is the measure
of its supplement?
Measurement supplement:

Answer:
105
Step-by-step explanation:
Supplementary angles are two angles that add up 180 degrees.
if one is 75, then the other would be 105
hope this helps :)
(i made a mistake so i edited it, thanks for the reminder in the comments)
Answer:
105 degrees
Step-by-step explanation:
Supplementary Angles are angles whose measurements equal 180 degrees
To find the supplement subtract this known measurement angle A
180 - 75 = 105 degrees