Answer:
91 degrees
Step-by-step explanation:
they are vertical angles which means they are congruent
Answer:
look at picture
Step-by-step explanation:
x: adult tickets
y: student tickets
Answer: the last option
Step-by-step explanation:
the top right is I, the top left is II, the bottom left is III, and the bottom right is IV
Y-y
——-
X-x
21-9=12
5-(-1) =6
So the answer is D