CREATE TABLE table_9185 ("% people under 18  ( 2005 ) " CLOB, "Seine-Saint-Denis" CLOB, "Paris" CLOB, "Val-de-Marne" CLOB, "Val-d'Oise" CLOB, "France" CLOB)

WHAT IS THE VAL-DE-MARNE WITH A Seine-Saint-Denis of 2.7%?
SELECT "Val-de-Marne" FROM table_9185 WHERE "Seine-Saint-Denis" = '2.7%'
SELECT "Val-de-Marne" FROM "table_9185" WHERE "Seine-Saint-Denis" = '2.7%'