CREATE TABLE table_name_38 (longitude NUMBER, county VARCHAR2, water__sqmi_ VARCHAR2)

what is the highest longitude for county mountrail and the water (sqmi) is less than 0.075?
SELECT MAX(longitude) FROM table_name_38 WHERE county = "mountrail" AND water__sqmi_ < 0.075
SELECT MAX("longitude") FROM "table_name_38" WHERE "county" = "mountrail" AND "water__sqmi_" < 0.075