Step-by-step explanation:
21. supplementary angles (add up to 180°)
22. vertical angles (congruent)
23. vertical angles (congruent)
24. supplementary angles (add up to 180°)
25. supplementary angles (add up to 180°)
26. supplementary angles (add up to 180°)
27. supplementary angles (add up to 180°)
28. supplementary angles (add up to 180°)
29.
(complementary angles)
30.
(supplementary angles)

31.
(vertical angles)
32.
(supplementary angles)

33.
(complementary angles)

Hope this helps!
Answer:
-4
Step-by-step explanation:
you say 6-10
which is -4
Step-by-step explanation:
1/4 • x - 8 = -23
1/4 • x= -23+8
1/4 • x= - 15
x = -15/4
x = - 3 3/4
you can also try to use the app called photomath, its really helpful and it gives you step by step explanation