Answer:
r = 1/6
Step-by-step explanation:

Multiply both sides by 4

Divide both sides by 3

Answer:16:18
Step-by-step explanation:
Angle-A and angle-B are alternate interior angles with parallel lines cut by a transversal. That tells you that the two angles are EQUAL. So you can write
8x + 78 = 2x + 114 ,
and it should all be smooth sailing for you from that point.
Answer:
91 degrees
Step-by-step explanation:
they are vertical angles which means they are congruent