Write an equation for the following data plz :)

Anyone know? will mark brainliest if correct!

When you are making a circle graph by hand, how do you convert a number for a part into its corresponding angle measure in the circle graph? when you are making a circle graph by hand, what should you do if one of your angle measures is greater than 180°?

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?