CREATE TABLE table_name_30 (location VARCHAR, _number___county VARCHAR, enrollment VARCHAR)

What is the location where enrollment is 266 and and the county is 18 Delaware?
SELECT location FROM table_name_30 WHERE _number___county = "18 delaware" AND enrollment = 266
SELECT "location" FROM "table_name_30" WHERE "18 delaware" = "_number___county" AND "enrollment" = 266