What weakness made it impossible to regulate a cross-country railroad?

In the wake of the civil war, compared to the south the north had sustained very little destruction. had to create a new labor system. had more economic challenges. had to repair damaged property.

What would happen if people from different races were seperated today

Arecent poll of 500 residents in a large town found that only 36% were in favor of a proposed referendum to build a new high school. find the margin of error for this poll if we want 95% confidence in our estimate of the percentage of residents in favor of this proposed referendum.