Answer:
43 degrees
Explanation:
Using SOHCAHTOA, you are given the opposite and adjacent, the opp being 15 and the adj being 16. 
Tan B = 

Tan B = 

 B = 
 (
(
 )
)
 B = 43.15238973 degrees
Therefore, the answer is 43 degrees since you're looking for it to the nearest degree.