Answer:
150
Step-by-step explanation:
bc is along a straight line with section 4 straight lines are 180° if bc is 30° then 180°-30°=150°
Answer:
A
Step-by-step explanation:
Answer:
Third one
Step-by-step explanation:
right = +
left = -
up = +
down = -
x - 7 + 3
