CREATE TABLE table_name_79 (roll NUMBER, authority VARCHAR2, decile VARCHAR2)

What is the highest roll number of the school with a state authority and a decile smaller than 8?
SELECT MAX(roll) FROM table_name_79 WHERE authority = "state" AND decile < 8
SELECT MAX("roll") FROM "table_name_79" WHERE "authority" = "state" AND "decile" < 8