You would like to make a salad that consists of lettuce, tomato, cucumber, and peppers. You go to the supermarket intending to purchase one variety of each of these ingredients. You discover that there are seven varieties of lettuce, ve varieties of tomatoes, two varieties of cucumbers, and three varieties of peppers for sale at the supermarket. How many different salads can you make? E> You can make '1 different salads. (Type a whole number.)