Does lincoln believe that how you make a living is a fixed or permanent condition

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.

Profits are maximized when marginal revenue and marginal costs are a. set c. equal b. less than market price d. greater than market price

Which of the following is not a requirement to become a us representative (congressman/congresswoman)?