How often is the number of congressional districts per state determined?

Is there such a thing as a social structure that constrains individual action, or is society nothing more than a figment of our imaginations?

Which of the following most likely contributed to the outbreak of world war ii? a. embargoes on international trade b. higher tariff rates in european countries c. sanctions imposed by the united states d. global economic depression

The us economy received all of the following benefits as a result of technological advancements during industrialization except a. increased production b. reduced costs of consumer goods c. increased farm employment d. the invention of new products