Answer:
40,000 lbs
Step-by-step explanation:
Returning to Jamestown, following Pocahontas' death in England, Rolfe continued in his efforts to improve the quality of commercial tobacco, and, by 1620, 40,000 pounds of tobacco were shipped to England. By the time John Rolfe died in 1622, Jamestown was thriving as a producer of tobacco, and its population had topped 4,000.