exam Maths Puzzle Numerical Ability

I am no good at graphing. Please help.
Find and graph the solution set:
a) x^3 -16x >0
b) X^2-5x_< -6

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exam Other Question

Find the oblique asymptotes of the function.
f(x) = (x^2 + 4x - 5) / (x - 5)
7x+3>9x-5

5x-5<2x+10
I=Prt Solve for r
3(x-2)+2=2(x-4)