exam Maths Puzzle Numerical Ability

simplify: 9m-4m+8x-3x ????

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exam Other Question

It says: Determine whether each quadrilateral with the given vertices is a parallelogram, a rectangle, a rhombus, or a square. List all that apply.

Then they give me the points:
M(1,5), N(6,5), O(6,10), P(1,10)

What do I do?
Factor:

4w^2-22w+10