8. Identify three improvements made in transportation during the period of Westward Expansion. How did these innovations impact the settlement in the west?

What was the first civilization name of the indians?

The current population of a city can be represented by "p." the population is expected to increase by 6.5% next year. write an expression in simplest form that represents the expected population next year.

The information box says that the han added 4,000 miles of wall.refer to the mileage scale.how can this be true?