exam Maths Puzzle Numerical Ability

a=2 b=5 c=-4 d=6
4b+5d-c/a
i can get 4.5+5.6- -4/2
=20+30-4/2
=50 2/1

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exam Other Question

If Y = 4x3 - 4x + 10, what is the value of Y when x = -2? Can someone help me on this problem:

I need to place the following set of numbers in ascending order:

-2, 8, 0, 2, -3, -20, 11

Thank you,
Lyn