Which December has a Record of 21–7–2, and a Game larger than 30?
CREATE TABLE "regular_season" (
  "game" real,
  "december" real,
  "opponent" text,
  "score" text,
  "record" text,
  "points" real
);
SELECT MAX("december") FROM "regular_season" WHERE "record"='21–7–2' AND "game">30;