exam Maths Puzzle Numerical Ability

HI
please help me with this

IS it possible to draw a quadrilateral so that all sides have positive slopes.If so do it if not explain why not.

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exam Other Question

Please help to solve :

3x - 2 / 7 - x/4 - x - 3/2 = 1 hi,
I was wondering if you need to prove the small triangles congruent and to make RW congruent to RZ is thr reason multiplication or division?
Thanks