After completing the railroad, what was the average time to travel across the US? This is the story of US “heartland “ question please answer this

6 days.

Explanation:

Before completing the railroad, horses is the only alternative that the people have for road transportation. If we count the amount of time both the travelers and the horses need to rest, travelling across united states using horses could take up around 150 days. The train could cover the distance in only 6 days.

The completion of this railroad was really important for US' economy because it enable companies to distribute their goods to other states at a significantly cheaper price.

d and a is the correct anwsers

explanation:

mount st. helens in washington erupts, causing a massive avalanche and killing 57 people on this day in 1980. ash from the volcanic eruption fell as far away as minnesota. seismic activity at mount st. helens, which is 96 miles south of seattle, began on march 16.