exam Maths Puzzle Numerical Ability

what is the answer to 2x+3>5?
what is the answer to -9x<_3x+12?

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exam Other Question

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The problem reads:

Subtract. Express your answer in simplest form.

2x over x-8 minus 16 over x-8

I am not certain how to complete this problem. Please advise. Thank you. HELP! Stabilization ratio. The stabilization ratio (births / deaths) for south and central America can be model by the formula y = -0.0012x^2 + 0.074x + 2.69 where y is the number