Well you can start by drawing a triangle with the information
the size of angle B can be found using the Law of Sine

the size of angle C can be found using angle sum of a triangle.
The length of side c can be found using the Law of Cosines

hope it helps
The answer is 9.....................
Uh I’d don’t know try to multiply them together to see what you get
Answer:
0.79769, or 0.80 if you round it up
Step-by-step explanation: