M∠AOC m, angle, A, O, C is a straight angle. m∠AOB=8x+51∘\qquad m \angle AOB = 8x + 51^\circ m∠AOB=8x+51 ∘ m, angle, A, O, B, equals, 8, x, plus, 51, degrees m∠BOC=6x−25∘\qquad m \angle BOC = 6x - 25^\circ m∠BOC=6x−25 ∘ m, angle, B, O, C, equals, 6, x, minus, 25, degrees Find m∠AOBm\angle AOB m∠AOB m, angle, A, O, B :

Answercounterclockwise rotation about the origin by 180 degrees followed by reflection about the y-axisexplanationthe given figure has verticesrecall that for counterclockwise rotation about the origin, when we rotate figure pqrs counterclockwise through an angle of 180° about the origin, the coordinates will becomenext, we reflect in the y-axis by negating the x-coordinates of the resulting figure to obtain,therefore the correct answer is c

Basic algebra equation. first set up your equation: divide out 9.and now you are left with 2x + 4 = 8.