Will mark brainiest to best and quickest answer

who is most likely to place an embargo?

a. a national government
b. a multinational corporation
c. an importer of luxury goods
d. an infant industry

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.

What is the rule relating the ratio of marginal utility to prices of two goods at the optimal choice? explain why, if this rule does not hold, the choice cannot be utility-maximizing.

In 1866, a mob in which tennessee city attacked local african americans and burned down homes and schools?