I need help with these three.

1. Which pair of angles are vertical angles?
A. B. C. D.
2. The lines s and t intersect at point R. What is the value of y? Enter your answer in the blank.
Y = ___

3. What is m ___ degrees

I need help with these three 1 Which pair of angles are vertical angles A B C D 2 The lines s and t intersect at point R What is the value of y Enter your answe class=
I need help with these three 1 Which pair of angles are vertical angles A B C D 2 The lines s and t intersect at point R What is the value of y Enter your answe class=
I need help with these three 1 Which pair of angles are vertical angles A B C D 2 The lines s and t intersect at point R What is the value of y Enter your answe class=