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The total surface area of the United States is 9.6 x 106 km2. Seventy-four percent of this land can support spiders. Given that there

The total surface area of the United States is 9.6 x 106 km2. Seventy-four percent of this land can support spiders. Given that there are approximately 5.0 x 104 spiders per acre, how many spiders are there in the United States? Recall that 1 acre - 0.004 km. Number i8 Units a N U Q

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