What did smoot-hawley tariff of 1930 do?

Which factor best suggests a cause for the urban problems shown in this table? (3 points) increasing discriminatory housing practices shifting population density gradients over time declining urban renewal efforts by city governments declining basic employment sector in industrial cities increasing gentrification efforts in the inner cities

Powers of states the first letter of the answer is r.

Morgan is dividing 2 by 18. what will keep repeating in the quotient?