Answer:
168
Step-by-step explanation:
A supplementary angle is that of which 2 angles combine to create 180 degrees. If B+C= 180, and B is 14 times that of 1, then it's 15 times an unknown value that equals 180. To find it divide 180 by 15.
180/15= 12.
12 is the value of angle c, and if b is 14 times that, then it's 14 x 12, which is 168.