Hopes this helps:
Answer: 9
1. Simplify 1 + 2 to 3.
6 divided by 2 times 3
2. Simplify 6 divided by 2 to 3.
3 times 3
3. Simplify.
9
Line 1 and 2 are parallel
line 1 and 3 are parallel
line 2 and 3 are parallel
Answer:
There is nothing here
Step-by-step explanation:
Answer/Step-by-step explanation:
7. Line 1 = undefined.
Slope of a vertical line is always undefined. The run is zero as x-coordinate remains the same.
8. Line 2 = 




9. Line 3 = 




10. Line 4 = undefined (slope of a vertical line is always undefined)
11. Line 5 = 



12. Line 6 = 




13. Line 7 = 0
An horizontal line has no rise.
14. Line 8 = 0 (slope of horizontal line is always zero)
15. Line 9 = undefined (slope of a vertical line is always undefined)
16. Line 10 = undefined (slope of a vertical line is always undefined)
17. Line 11 = 0 (slope of horizontal line is always zero)
18. Line 12 = undefined (slope of a vertical line is always undefined)
If two figures are similar, the resulting corresponding angles are always congruent.