exam Maths Puzzle Numerical Ability

I need help on how to write the statements and reasons for this proof

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exam Other Question

This is not making sense to me. I don't understand how to get the inequalitites so I can graph.

3 - 3 > 6

3x + 2y > 12 A market vendor wants to mix the liver and the gizzards of chickens to have 40 kilograms of assortment worth 120.00 per kilogram. The liver costs 110.00 per kilogram while the gizzard costs 75.00 per kilogram. How much each kind must be mixed?