I would say go with with B
5m-14/(m+1)(m-1)
excluded values: 1,-1
Answer:
x = 13
Step-by-step explanation:
m∠ABC + m∠CBD = 180° {linear pair}
3x + 43 + 6x + 20 = 180
3x + 6x + 43 + 20 = 180
9x + 63 = 180
9x = 180 - 63
9x = 117
x = 117/9
x = 13
Answer:
the answer to your question is E. 25%
