c
step-by-step explanation:
so far i think you have the right thing going for you just remember soh cah toh
sine over hypotenuse
cosine equals adjacent
tangent over hypotenuse
divide, then simplify your answer.
1. make -15.66 ÷ 5.8 a fraction. then divide.
2. simplify.
3. final answer.
probably the last option