When did lincoln propose the 13th amendment?
a. before the outbreak of the civil war
b. at the conclusion of the civil war
c. prior to the emancipation proclamation
d. during his 1864 presidential campaign
(not when they passed it)

Using only this chart, which step would you take first to compare the standard of living in these countries? add the gdp numbers for the countries to get a total. divide each gdp number by its country's population. subtract each population number from its country's gdp. multiply the population number by the gdp for each country.