Please help me answer this! This will help other ppl who need the answer too :D Determine which postulate can be used to prove the triangles are congruent then identify the valid congruency statement.

Pls answer all three below- I just got back from my flight and i'm so exhausted xD

M? aoc=96 ? space, m, angle, a, o, c, equals, 96, degree \qquad m \angle boc = 8x - 67^\circm? boc=8x? 67 ? space, m, angle, b, o, c, equals, 8, x, minus, 67, degree \qquad m \angle aob = 9x - 75^\circm? aob=9x? 75 ? space, m, angle, a, o, b, equals, 9, x, minus, 75, degree find m\angle bocm? bocm, angle, b, o, c: