exam Maths Puzzle Numerical Ability

Graph the inequality and shade in the correct area of the graph:
2/3x + 3y<or equal to 12

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exam Other Question

My instructions are: identify each symbolic statement as a conjunction, disjunction, conditional, negation or biconditional.

1. ~PvQ->R^S.

I think this is a biconditional If f(x)=x^2-6x+8, what is the value of f(7)-f(3)?