A salad bar has 3 different types of lettuce, 6 different vegetables, 2 types of cheese, and 3 types of dressing. You can purchase a salad with one choice of lettuce, one vegetable, one choice of cheese, and one choice of dressing.

How many different salad combinations are possible at this salad bar?

To find the total number of possible salad combinations, we simply need to multiply the number of choices for each category together.

Number of lettuce choices: 3
Number of vegetable choices: 6
Number of cheese choices: 2
Number of dressing choices: 3

Total number of salad combinations = 3 (lettuce choices) x 6 (vegetable choices) x 2 (cheese choices) x 3 (dressing choices)
= 3 x 6 x 2 x 3
= 108

Therefore, there are 108 different salad combinations possible at this salad bar.