exam Maths Puzzle Numerical Ability

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y=4/3x-2

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Graph the inequality and shade in the correct area of the graph:

2/3x + 3y is less than or equal to 12 a steak has thickness w inches. Let T be the time it takes to broil steak. It takes 12 minutes to broil a one inch thick steak. For every additional inch of thickness, the steak should be broiled for 5 more minutes. Wrie an equation for T in terms of w.