Final answer:
The Jamestown colonists' bad luck turned to good when they became more dependent on trade with the natives for food. However, the trade became less favorable for the colonists over time.
Step-by-step explanation:
The Jamestown colonists' bad luck turned to good when they became more dependent on trade with the natives after a fire destroyed their fort and supplies. Powhatan, the chief of the Powhatan tribe, sent food to the colonists, easing their hunger.
However, trade with the Indians became less favorable for the colonists as the Indians learned the value of their own goods to the English and started expecting more in return.