Answer:
The machines were expensive to buy, which helped cause some of the debt the farmers faced. However, the machines allowed for more crops to be grown and harvested, which led to an oversupply of crops. This caused crop prices to drop, which squeezed the farmers financially. The railroads were also a problem for farmers.
The first was Virginia, the last was Georgia.
Answer:
if the rest of the question is "... population density of fewer than two people per square mile", the answer is California, Iowa and Minnesota.