the graph above represents one function, and the table represents a different function. how are they similar?how are they different?

Given: ac and db are diameters. m∠3=

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°?

Which number line correctly shows 0.8 + 0.3?