What is the average Long that has a GP-GS less than 14, a AVg/G less than 0.8 and a Gain less than 3 and a Loss greater than 8?
CREATE TABLE "rushing" (
  "name" text,
  "gp_gs" real,
  "gain" real,
  "loss" real,
  "long" real,
  "avg_g" real
);
SELECT AVG("long") FROM "rushing" WHERE "gp_gs"<14 AND "avg_g"<0.8 AND "gain"<3 AND "loss">8;