exam Maths Puzzle Numerical Ability

What is the cubed root of negative 8/27?

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exam Other Question

The future value of an annuity is A=$32,000. Periodic payments are made quarterly for four years and the annuity earns 8% compounded quarterly. What are the periodic payments? Let f(x) = 3x2 − 1 and g(x) = 2x + 5. Find f(g(−4)) and g(f(−4))