Answer:
The medication is effective, but may take some time to work its way to the immune system
Step-by-step explanation:
I suppose its 7, subtracted
Answer: 
Step-by-step explanation:
The measure of the third unknown arc is
.
So, 
Multiply the first equation by -2 gives:_
-2y = -8 + 2x
2y = 8 - 2x
adding these 2 equations:-
0 = 0
This shows that the 2 equations are equal so there are infinite solutions
Name all the angles that have v as a vertex