Vocabulary:
Vertical equals each other
Complementary adds up to 90 degrees
Supplementary/Linear Pair adds up to 180 degrees.
1) 37+b=90
b=53 degrees
(Complementary)
2) 51 degrees=51 degrees
(Vertical)
3) 180-124=56 degrees
(Supplementary)
Note: these are actually very easy, once you know what type of angles they are, you’ll be able to do them without a problem