What is the lowest Total, when Silver is greater than 7, and when Gold is greater than 73?
CREATE TABLE "sailing_1896_1968" (
  "rank" text,
  "nation" text,
  "gold" real,
  "silver" real,
  "bronze" real,
  "total" real
);
SELECT MIN("total") FROM "sailing_1896_1968" WHERE "silver">7 AND "gold">73;