What is the density of the common with an area of 20.4 km^2?
CREATE TABLE table_1449176_1 (density__inhabitants_km_2__ VARCHAR, area__km_2__ VARCHAR)
SELECT density__inhabitants_km_2__ FROM table_1449176_1 WHERE area__km_2__ = "20.4"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_1449176_1 (density__inhabitants_km_2__ VARCHAR, area__km_2__ VARCHAR) Question: What is the density of the common with an area of 20.4 km^2? [/INST] SELECT density__inhabitants_km_2__ FROM table_1449176_1 WHERE area__km_2__ = "20.4" </s>