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Can someone pls help me with question 21

Can someone pls help me with question 21-example-1

1 Answer

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1.24 x 10 to the power of 4 = 12400
3.71 x 10 to the power of 3 = 3710
12400-3710=8690
8690=8.69 x 10 to the power of 3
User Acejazz
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