China's high speed Shanghai Transrapid train travels 405 miles in 112 hours. At this rate how far will the train travel in 4 hours? 540 miles 805 miles 1080 miles 2430 miles

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Thats where they was ported and the fields that noone really knew much about needed tended, so they put slaves out there do free work and huge profits and so on the north decided to hold its own and was more different way of survival did not have same climate conditions to afford protecting slaves from winter so expenses be diff from south