C.supplementary is the right one
Answer:

Step-by-step explanation:

Let us group the integers and the fractions.
= 
= 



Answer:
n = 6
Step-by-step explanation:
Using the sine ratio in the right triangle and the exact value
sin30° =
, then
sin30° =
=
=
( cross- multiply )
2n = 12
( divide both sides by 2 )
n = 6
Answer:
Ray KM is an angle bisector of NKL.
Step-by-step explanation: