Which of the following is a linear inequation? 1. x² + 3 ≥ 2x - 7 2. 7/x-1 < 3x + 4 3. 7/3 x -9 ≤ 5 + 4/7 x 4. 5 - 9/x > 3x + 4

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Let A = {x ∈ R : 11x - 5 > 7x + 3} and B = {x ∈ R : 8x - 9 ≥ 15 + 2x}. Find A ∩ B and represent it on the number line.