exam Maths Puzzle Numerical Ability

7x+3>9x-5

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

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exam Other Question

I am no good at graphing. Please help.
Find and graph the solution set:
a) x^3 -16x >0
b) X^2-5x_< -6 need to solve for Y, (x-2)/(x+1)=(5y+1)/(y-2)