Allison's math class found that it would take 1.5E7 Artifical Field grass to cover a square mile area. The surface area of the United States is about 2.8E8 square miles. About how much Artifical field

Allison's math class found that it would take 1.5E7 Artifical Field grass to cover a square mile area. The surface area of the United States is about 2.8E8 square miles. About how much Artifical field grass is needed to cover the United States?

A. 4.0E19
B. 4.2E23
C. 5.0E17
D. Other ________

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Allison's math class found that it would take 1.5E7 Artifical Field grass to cover a square mile area. The surface area of the United States is about 2.8E8 square miles. Ab…

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