If you want me to solve for "Y" then, the answer will be,

ir if you want me to solve for "X" instead then the answer will be,

Answer:
A and C
Step-by-step explanation:
Both angles j and m share one common side and vertex with angle k. Angle n only shares a vertex and not a side with angle k, so it is not adjacent.
2.964 bolts
Because 7.8*.38=2.964