What percentage is Karen Handel at in the poll in which Eric Johnson is 13% and undecided is 22%?
CREATE TABLE "republican_primary" (
  "poll_source" text,
  "dates_administered" text,
  "john_oxendine" text,
  "karen_handel" text,
  "nathan_deal" text,
  "eric_johnson" text,
  "ray_mc_berry" text,
  "undecided" text
);
SELECT "karen_handel" FROM "republican_primary" WHERE "eric_johnson"='13%' AND "undecided"='22%';