exam Maths Puzzle Numerical Ability

can someone please help me with this problem:

Evaluate the function at the given value of the independent variable and simplify.


f(x) = x^3 + 3 / x^2 - 3 ; f(3)

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exam Other Question

Working with your cousin, you can refinish a table in 8 hours. Working alone, your cousin can complete the job in 12 hours. How long would it take you to refinish the table working alone? simplify:


68-19
______- 32/8 +14 divided by 7
2+5