user: ### NOW ANSWER:
Question: What is the Decile with a State Authority and a roll of 120?
Columns: ['Name', 'Years', 'Gender', 'Area', 'Authority', 'Decile', 'Roll']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'real']
Sample row: ['Alfriston School', '1–8', 'Coed', 'Alfriston', 'State', 9.0, 328.0]
SQL:

assistant: SELECT SUM("Decile") FROM "Table" WHERE "Authority" = 'State' AND "Roll" = 120.0;