exam Maths Puzzle Numerical Ability

I need help with this equation Solve the compound inequality. Then graph the solution

8x 11 < 5 or 4x - 7 > 13

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exam Other Question
Evaluate x over y if x is 49 and y= -7 Prove: For any vectors u, v, and w, the vectors u-v, v-w, and w-u form a linearly dependent set.