Answer:
1. B. x = 100
2. A. y = 80
Explanation:
x° and 80° form a linear pair. That means that their measures add up to 180°.
x° + 80° = 180°
x = 100
y° is vertical with 80°. Vertical angles are congruent, so their measures are equal.
y = 80
x=100 y=80
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