Answer:
A
Step-by-step explanation:
according to tangent property
we get
Given that
Thus our equation is

substitute the given values

simplify multiplication:

simplify addition:

cancel 20 from both sides:

divide both sides by 2:

AN=CN
hence,CN=7
therefore our answer is A
8/15 or somthing like that it you might be souposed to solve it diferent than i did
Answer:
I got 103˚ because I put (x+40)˚ into the calculator