What is the sum of Asian or Amerindian (%), when Black (%) is 9,7, and when White (%) is greater than 45,7?
CREATE TABLE "ethnicities_by_region" (
  "state" text,
  "white_pct" real,
  "brown_pct" real,
  "black_pct" real,
  "asian_or_amerindian_pct" real
);
SELECT SUM("asian_or_amerindian_pct") FROM "ethnicities_by_region" WHERE "black_pct"='9,7' AND "white_pct">'45,7';