Answer:
angle B = 168 degrees
Explanation:
Supplementary means that the two angles add up to equal 180, so we know that B + C = 180.
We also know that B is 14 times C, so B = 14C.
We can replace B in the original equation with 14C, so we get 14C + C = 180. Simplify this to get C = 12.
Now we can multiply this by 14 to find B, so B = 168 degrees.