Businesses often use information such as age, income level, and occupation to sell products to certain groups of people. what is this type of information called? : revenues complements markets demographics

24-karat gold is considered to be pure gold. 18-karat gold is considered to be about 75% gold. what is 18-karat gold considered a mixture rather than a pure substance? a) it has a variable composition of other elements and minerals. b) its color is different than pure gold. c) the gold atoms are not arranged in a repeating pattern. d) it can be melted and transformed into a different substance.

Which at first gave the south an edge in the civil war? a. a better-equipped army b. the invention of ironclad ships c. the drafting of slaves into the army

What new form of music swept the nation in the 1950s a. chamber music b. hip-hop c. jazz d. rock-and-roll