Solve the Problem $\mathrm { S } 9 ^ { \circ } 50 ^ { \prime } \mathrm { W }$

Multiple Choice

Solve the problem.
-Lookout station B is located 6 mi due east of station A. The bearing of a fire from A is $\mathrm { S } 9 ^ { \circ } 50 ^ { \prime } \mathrm { W }$ and the bearing from B is $S 28 ^ { \circ } 50 ^ { \prime } W$ . Determine the distance from the fire to B (to the nearest tenth of a mile) .

A) $9.1 \mathrm { mi }$
B) $11.1 \mathrm { mi }$
C) $18.2 \mathrm { mi }$
D) $20.2 \mathrm { mi }$