Answer:
3) 53 degrees
4) 38 degrees
Explanation:
Similarly to the previous question, the value of b in both of these examples can be found because you know that they are complementary with their adjacent angle.
3)
b+37=90
b=90-37
b=53 degrees
4)
b+52=90
b=90-52
b=38 degrees
Hope this helps!