Table: fox_glacier_school
Columns: name
years
area
authority
decile
roll

Question: What is the decile sum with a roll smaller than 25, and franz josef area?
SQL: SELECT SUM("decile") FROM fox_glacier_school WHERE "roll" < 25 AND "area" = 'franz josef'

Question: What is the area with decile of 8, and a 25 roll?
SQL: SELECT "area" FROM fox_glacier_school WHERE "decile" = 8 AND "roll" = 25