Answer:
Adding 3
Step-by-step explanation:
-3 + 3 = 0
0 + 3 = 3
3 +3 = 6
6 + 3 = 9
16. 48 degrees
17. 1-37 2-57
18. 1- 34 2- 78
1. Right Triangle
2. Isosceles Triangle
3. Equilateral Triangle
about 11
answer is in picture
Answer: nah