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A pond plant doubles its surface area every four days. If it covered an area of 20 cm2 on 17th June, what is its area on 15th July?

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Cubed and squared are types of indices. By writing numbers as powers of a common base, multiplication and division can be turned into addition or subtraction of indices making calculations with large or small numbers easier, as long as you follow the Math rules.
 


A pond plant doubles its surface area every four days. If it covered an area of 20 cm<sup>2</sup> on 17<sup>th</sup> June, what is its area on 15<sup>th</sup> July?





 
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