exam Maths Puzzle Numerical Ability

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Number 16

Find the area of an ultimate frisbee disc whose diameter is 27 cm ( Use 3.14 to approximate ~)

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exam Other Question

simplify - (4X³)(-2X4)³

(4x to the third power)(-2x to the 4th power)³
3x²-5x-2 * 4x²-4x+1
2x²-5x+2 3x²+4x+1