CREATE TABLE "average_chart" (
  "rank_by_average" real,
  "place" real,
  "couple" text,
  "total" real,
  "number_of_dances" real,
  "average" real
);

Question: What is the highest average that has 6 dances and a total of over 128?
SQL: SELECT MAX("average") FROM "average_chart" WHERE "number_of_dances"=6 AND "total">128;