exam Maths Puzzle Numerical Ability

-7x(3xy+2y-4x)

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exam Other Question

This is from a worksheet: Solve the inequality:

8x - 9 (divided by -4) < - 23 (divided by 8)
PCD is a 30-60-90 triangle with m of C=30 and CD the hypotenuse. Find the coordinates of P for C(2,-5) and D(10,-5) if P lies above CD.