The game starts with a small stall the stall is just a lemonade stand with one helper and the other one is burger shop where you have to start from one helper as well.
In the lemonade stand the helper is really slow and you need improve it.
Same is the case with burger shop where the slow worker is really annoying.
Go to sandwich shop and work on it as well.
Good luck with your lemonade stand burger shop and sandwich shop