4. 40% of the marbles in a bag are yellow. the rest are orange and green. the ratio of the number of orange to the number of green is 4: 5. if there are 30 green marbles, how many yellow marbles are there? use a visual model to show your answer.

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: