18. -500 + 250 = -250
19. -550 - 300 = - 850
20. 116 - (-50) = 116 + 50 = 166
21. 2500 + 1800 - 2200 = 2100
Answer:
0.8
hope this is correct!! c:
If u separate these into 2 triangles then they will become 90 degree triangles so angle a=angle c.
Answer:
1 and 4
Step-by-step explanation:
