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The amount of lactic acid increases from 20 au to 80 au across the duration of the exercise period.
Work out the percentage change in lactic acid during this time.

Respuesta :

SauseMan

Answer:

69

Explanation:

he amount of lactic acid increases from 20 au to 80 au across the duration of the exercise period.

Work out the percentage change in lactic acid during this time.

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