Your first objective in "New tracks" mission is to collect 120,000$. This isn't difficult to do because you start this mission with about 113,000$ which means that you only have to get about 7,000$. After that, you have to get your sales at 20. You can speed this process up by making your guest room bigger so it can accommodate more customers. Another thing that you can do is to invest in ads and hire a mascot. Another objective is to sell 80 pizzas. You can reach this objective faster by opening another restaurant. Another good choice is to send a car with pizza. This investment doesn't cost as much as another restaurant but it will get you a lot of customers.
Destroy ads of your competition
Your new objective is to destroy all ads of your competition. They are marked on the map so you shouldn't have problems with finding them. You work as always - hire a thug and send him to the right spot. Remember that the owners of the "opposing franchise" can buy additional ads.