exam Maths Puzzle Numerical Ability

Michelle is eight years older than Adam. Three years ago Michelle was twice as old as Adam was then. How old is Michelle?

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exam Other Question

5. x2+4x+3

6. x2+6x-2

10. 3x2+4x-5

14. -4x2+8x+1
slope 5, containing the points (3,2)