exam Maths Puzzle Numerical Ability

Determine which two equations represent perpendicular lines.

(a) y=2/9x-3 (b) y=3x-2/9 (c) y=-1/3x+2/9 (d) y=1/3x-2/9

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exam Other Question

A small company produces both bouquets and wreaths of dried flowers. The bouquets take 1 hour of labor to produce, and the wreaths take 2 hours. The labor available is limited t please help me solve problem: 2x-3+6x=4(3x2-)+3
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