What is the setting in chapter 16 of lyddie

Which of the following encouraged westward expansion? a. the government decreased the price of federal land. b. each of these represents actions taken to encourage westward expansion. c. the government decreased the price of federal land d. the second national bank lowered the cost of borrowing money (reduced interest rates)

Astorage company rents square storage units by the area of the unit. which graph shows the relationship between the area (x) of a storage unit and the length of its side (y)?

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