exam Maths Puzzle Numerical Ability

9/2x+6-7 /5x+15=2/3

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exam Other Question

Can -4w(w^2+4w-5) be factored? Oblique triangles:

Solve for each triangle.

B=19.3m C=28.7m A=57.0 degrees



This is all the information my book gives and I am not clear on what to do with it? I tried looking at exsamples? Can you help? Thanks.