Answer:
126 degrees
Explanation:
Line IP is straight so it is a 180 degree angle
since the angles JKI and JKN are you this line they are supplementary angles meaning if they were added they would equal 180 degrees.
All we have to do is subtract the value of the angle of JKI which is 54 degrees from 180 to get JKN
180-54
126
Hopes this helps