Answer:
Step-by-step explanation:
m∠AOC = 180 as it is straight line
m∠AOC = m∠AOB + m∠BOC
m∠AOB + m∠BOC = 180
3x + 124 + 6x + 29 = 180
9x + 153 = 180
9x = 180 - 153
9x = 27
x = 27/9
x = 3
m∠BOC = 6x +29 = 6*3 + 29 = 18 +29 = 47
