Note: round your answer to the nearest whole number. Ignore commas in expressions like 10,000 etc... A restaurant has a daily sandwich special. The customer must choose one bread type out of wheat, multigrain, white and flatbread, The customer must also choose one filling type out of ham, chicken, beef, salmon and veggie. Finally, the customer must choose 4 different salad types out of lettuce tomato, cucumber, capsicum, spinach, carrot, and onion. How many different sandwiches that contain lettuce are possible? [3 marks]