exam Maths Puzzle Numerical Ability

I need help with solving this inequality

2(x+2)<3/4x-1

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exam Other Question

a lab technician has 8 liters of a 15 percent solution of acid. How much distilled water must be added to reduce the concentration of acid to 10 percent? can some one please make a graph for me with the following points
(o,-2),(3,-1)= y<1/3x-2
(0,6)(3-1)= y>-3/2x+6