exam Maths Puzzle Numerical Ability

Simplify (9x^4y^2y^-8w^0)^1/2 divided by (125x^-6y^-3y^0)^1/3

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exam Other Question

question 3x-y<6
x>1
y<3
Please solve graphically, P.S there is a line under each of the <,> symbols.

I thank you in advance for your help. Graph the following inequalities:

3x - 4y < 12