On what grounds did Dred Scott claim his freedom?

In a planned economy, which of the following does the job of market forces in order to determine the outcomes?

What effect did ww11 have on empires that had been created by european nations

One of the main things that tobacco did for jamestown was to foster peace between the english and the powhatan. o save the colony by providing a source of income. finance the formation of the house of burgesses. make the virginia company a financial success.