Mathematics, 02.10.2020 19:01 garykids305

Keegan and Jeff did some research and found that there are approximately 7,492,000,000,000,000,000 grains of sand on Earth. Jeff says that it is about 7 × 10(15) grains of sand. Keegan says that this is about 7 × 10(18) grains of sand. A. How might Jeff have determined his estimate? How might Keegan have determined his estimate?

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Keegan and Jeff did some research and found that there are approximately 7,492,000,000,000,000,000 g...