exam Maths Puzzle Numerical Ability

Luisa participated in a triathlon in which she swam 3 miles, ran 5 miles then bicycled 10 miles. Luisa ran twice as fast as she swam and she cycled three times as fast as she swam.

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exam Other Question

Hi! Could someone please help me with these problems. I need to simplify and all exponents should be positive.

4x^3*(3y)^4

(2^-1a^2b)^-3
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4a^-9

Thanks so much for your help! The manager of a computer software company wishes to study the number of hours senior executives spend at their desktop computers by type of industry. The manager selected a sample