Answer:AlF3
Step-by-step explanation:
17. 2/3
18. 1 1/9
20.9 1/11
21. 2 909/100 (closest i could get)
Hope I helped and hope you had a good day!
Answer:

Step-by-step explanation:
The inequality has the attached picture as its graph.. The inequality passes through (0,-1) and is a horizontal line. This means the inequality has the form y < b or y > b where b is the y-coordinate. Since the \shading is above the line then the values must be greater than -1. It is also a solid line so the inequality is equal to. The inequality is 
Answer: 2/8, 0.432, 87%
Step-by-step explanation:
Hope this helps. (p.s. there is 7 zeros in 91,250,000,000)