The data in the table above are the U.S. balance of payments. The sum of the current account plus capital and financial account plus official settlements account is equal to

A graph shows the average SAT scores for males and females in 2012. The kind of graph used to show these data would be a

A) scatter diagram. B) time-series graph. C) cross-section graph. D) time-stationary graph. E) trend figure.

Why did the slave-labor system probably cause a lag in Southern urban and industrial development?

(a) The slave system provided a weak market for goods because of the low income and consumption levels of slaves. (b) Side-effects of urbanization and industrialization, such as slave flight and greater freedom, were threatening to Southern owners. (c) The South's slave society culture was resistant to manufacturing and urbanization. (d) All of the above apply.