book Maths Puzzle Numerical Ability

Write the slope-intercept form of the equation of the line passing through the
point (-2,3) and paralley to the line y=-5x-4.

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book Other Question

solve x^3-3x^2-28x=0 i have to create a box and whisker plot for the following data:

14,15,11,10,25,20,23,22,19,20

what is the lower quartile, upper quartile, and median for this set of data?