exam Maths Puzzle Numerical Ability

3x - 8(3-x) = 53

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exam Other Question

Find the slope, if it exists, of the line containing the pair of points.

(1,10) and (8,-8)
The slope m=-18/7
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.