Answer:
m∠BOC = 47°
Step-by-step explanation:
m∠AOC = 180 (as it is a straight angle}
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°
the answer is -32
you add -45 and 13
2x + y = 20 . y=3x
2x + 3x = 20
5x = 20
x/5 = 20/5
x = 4
(4,0)