Answer:

Step-by-step explanation:
The angles are vertical since they form from two lines crossing at a point and they share a same vertex.
Vertical angles are equal so



The least common denominator is 5y, and can be obtained by multiplying
-1/y by 5/5 to get -5/5y.
If we add the numbers using the least common denominator, we get:
-5/5y + 2/5y = -3/5y
Answer:
0.53%
Step-by-step explanation:
hope it is well understood
I have no clue I just need to answer some questions before I can ask my own again lol
Is this what you were asking for?