exam Maths Puzzle Numerical Ability

Write with positive exponents:

9x(x^-3)/18x^15

(3^-3a^-2b^5/c^-3d^-4)

x^-3y^-2/z^-4

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exam Other Question

change each equation to slope intercept form and state the slope and y intercept: 6x-4x+8=0 Graph each inequality.
68. y < 1/2x + 2