What are the similarities and differences between having 1 vendor and multiple vendors in a school cafeteria.

Answer 1

Similarities:
Both serve food.

Differences:
Prices may be cheaper.
A bigger variety may be offered.

What similarities and differences do you see?

Answer 2

What do you think? By vendors, you mean commercial vendors who sell food to students, like McDonalds and Pizza Hut? If so, whether it's one vendor or several, the food still must be paid for, as at the mall food court. Is that what you mean by multiple vendors? Think it over for yourself.