What is the total of rebound averages with more than 98 games and a rank of 7?
CREATE TABLE "rebounds" (
  "rank" real,
  "player" text,
  "years" text,
  "games" real,
  "reb_avg" real,
  "total_rebounds" real
);
SELECT SUM("reb_avg") FROM "rebounds" WHERE "games">98 AND "rank"=7;