exam Maths Puzzle Numerical Ability

what is x/7=6 please i need this done today

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Ok I need help on this one please...

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Number 2

5x(-3x^4 + 4x) I have to multiply this one...
1. (13√3x6y)11=
3. 2563/4=
5. Subtract and simplify by collecting like radical terms if possible, assuming that all expressions under radicals represent non - negative numb