i cant see it post the questions
Never mind it showed up
The answer is 'c' I believe....
The Angle Addition Postulate states that: If point B lies in the interior of angle AOC, then. . The postulate describes that putting two angles side by side with their vertices together creates a new angle whose measure equals the sum of the measures of the two original angles.
Additive Property of Equality. The formal name for the property of equality that allows one to add the same quantity to both sides of an equation.