Please help, I'm so close to finishing all these.

Answer:
d. 43°
Step-by-step explanation:
KM is a bisector of ∠LKN, so ...
∠LKN = 2(∠4)
7q +2 = 2(4q -5)
12 = q . . . . . . . . . . . add 10-7q, simplify
Now, we can put 12 where q is in the expression for ∠4:
∠3 = ∠4 = 4·12 -5 = 43