What change signaled the beginning of the middle ages

Thinking back to previous chapters, analyze america’s policies toward indians from the washington administration to the removal of indians from the southeastern states in the 1830s and early 1840s. what ideas and policies about indians remained the same? which changed? why?

How did the completion of the transcontinental railroad change the lives of american citizens? a-it increased the wealth of all americans and enabled them to travel more.b-it made cross-country travel too expensive for ordinary americans.c-it decreased the safety of americans who moved to settle the plains.d-it shortened travel time between the east and west for all americans.

How do you think entrepreneurs contribute or industry in america? describe your answer.