The answers are right! Good job!
3x+x=180
x=45 is the right answer
Answer:
The correct option is;

Step-by-step explanation:
The given diagram consists of a a starting point, J having a direction passing through the point S and the line has one arrowhead on the right pointing to infinity, which is the symbol for a ray, JS
The denotation of a ray is made by the name of the ray having an overhead arrow as follows;
ray 