What is the highest Best score for the Dance Mambo?
CREATE TABLE "highest_and_lowest_scoring_performances" (
  "dance" text,
  "best_dancer" text,
  "best_score" real,
  "worst_dancer" text,
  "worst_score" real
);
SELECT MAX("best_score") FROM "highest_and_lowest_scoring_performances" WHERE "dance"='mambo';