Final answer:
By the end of the seventeenth century, Maryland and Virginia had significant agricultural economies based on tobacco cultivation and the use of slave labor.
Step-by-step explanation:
By the end of the seventeenth century, both Maryland and Virginia had significant agricultural economies based on tobacco cultivation and the use of slave labor. Tobacco was the cash crop that dominated the region's economy and slave labor was essential for its production.
Learn more about agricultural economies in Maryland and Virginia