Question: What is the seat of the RCM in the county that has a density of 9.7?
Schema: create table table_214920_1 (seat_of_rcm varchar, density__pop_per_km2_ varchar, PRIMARY KEY (seat_of_rcm))
SQL: select seat_of_rcm from table_214920_1 where density__pop_per_km2_ = "9.7"