Which Year started is the lowest one that has a Number of cars larger than 7, and a Car # of 100?
CREATE TABLE "canada" (
  "year_started" real,
  "number_of_cars" real,
  "current_car" text,
  "car_num" text,
  "website" text
);
SELECT MIN("year_started") FROM "canada" WHERE "number_of_cars">7 AND "car_num"='100';