exam Maths Puzzle Numerical Ability

A tennis coach has 16 players and 8 courts. And want to rank each of them from worst to best. show a solution that requires no more than 10 hours.

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exam Other Question

I have to graph this and I am not sure how?
Graph the solution set of x < -5.
I do not know if my question belongs in this category. But it deals with inverse functions.

The function is f(x) =

1
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x^3 + 12x^2 + 48x + 4