Which of the following explains the increase in the import of enslaved persons in Maryland and Virginia?

Why might it be important to know a currency’s exchange rate

How would high tariffs hurt america? a. fewer immigrants would be able to move to america b. sales of american products to other countries would go down c. americans would sell more goods to other countries d. goods imported from other countries would cost less

Which of the following was probably the most difficult challenge facing construction of the railroad?