Which Pos has a Team of roush fenway racing, and a Car # of 99?
CREATE TABLE "camping_world_200" (
  "pos" real,
  "car_num" real,
  "driver" text,
  "make" text,
  "team" text
);
SELECT SUM("pos") FROM "camping_world_200" WHERE "team"='roush fenway racing' AND "car_num"=99;