TIME LIMIT
What is the measure of angle B in degrees?

Answer:
B∠119°
Step-by-step explanation:
Well first we need c.
And c + 112 = 180
So -112 is c = 68
68 + 51 + a = 180
68+51 = 119 + a = 180
a = 61
b + 61 = 180
b = 119