Purple Cabbage Lettuce Salad

Ingredients: 1 10oz bag shredded purple cabbage 1 10 oz bag romaine lettuce 3 scallions 1/2 cup sunflower seeds 1/3 cup slivered almonds 1 11oz can mandarin oranges, drained 2 cups chow mein noodles Dressing: 1/2 cup oil 1/4 cup brown sugar 1 tsp salt 3/8 cup vinegar