Answer:
y=-
x+3
Step-by-step explanation:
Angle B is 36. Hope this helps. :)
2+x=50
That is what I would do. I hope this helps!
You need to know these two formulas:

For example,

The correct answer of 1/3 is the decimal form of it which is 0.3 repeated (you can put a line on top of the 3). If not just leave it as 1/3 it is simplified as a fraction.