Answer:

Step-by-step explanation:
add all qestions together 10+3+9=22
and put the number of free responces on top of the total number of qestions

and you cant simplify it so its in its simplist form
If your original equation was
, then a reflection over the x-axis means you need all the y-values to switch sign. This means you need to multiply that function by -1.
or 
Step-by-step explanation:
Very quick and effortless example of vertical angles in the attached image. When 2 straight lines intersect, the 2 angles opposite each other at that point are vertical angles, and they are always congruent.
I'd say it's the 3rd option:
"Vertical angles are a pair of non-adjacent angles formed by two intersecting lines."
but any of the first three could be technically true really. Adjacent angles are 2 angles that share a side, and vertical angles cannot share one.
1-D, 2-C, 3-A, 4-C, 5-B, 6-A, 7-D, 8-B