Colonized by Spain, the land that is now New Mexico became U.S. territory as part oft he Gadsen Purchase in 1853, though New Mexico did not become a U.S. state until 1912.
Average incomes in Florida are $75,000. Average salaries in Michigan and Pennsylvania are $73,000 per annual. By far most paid US city is San Francisco, with average salary about $100,000 per annual. The second largest salaries are in New York City, Washington DC, and Boston, all from $87,000 to $88,000 per annual.
B. $7,000 is correct. The world's average income - total world income divided by total number of people - is about $7,000. Still, only about 19 percent of the world's population lives in countries with per capita incomes at least this high. Countries with an average income near $7,000 include Mexico, Chile, and Latvia.