exam Maths Puzzle Numerical Ability

Given f(x) = -x3 + 3x2 - x + 4, find f(-2), f(0), and f(3)

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exam Other Question

how old is pepe if 9 years he will be 4 years as old as he is now. can you help me with the following questions thanks
write each ratio in simpiest form
1. 65 to 65
2. 32 to 26
3. 30 over 50
4. 57:60