Help me answer this with complete solution pls. If S = { x | 0 < x < 25 }, A = { x | 5 < x < 12 }, B = { x | 2 < x < 9 } and C = { x | x > 8 }, find: a.    B U C' b. A ∩ B c.    A U ( B ∩ C’)

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