exam Maths Puzzle Numerical Ability

My problem is:

10w > -40

If Someone Help I would be Thankful

Kia,14

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exam Other Question

|1x + 4| + |1x − 5| = 2x + 4

x=?

sum of all solutions =?
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6x + 5y + 2z = −12,
3x + 6y + 2z = −17,
6x + 5y + 6z = −28.
2x2 + 3xy -4y2 when x=2 and y=4 i would like to know how they got (-80)
if any one can break it down this is from a sample test for college online