Which of the following sources might contain research that would support the assertion? "the uniform jerseys will serve as inexpensive advertising."

When you say "inexpensive", you have to compare it to something: so they have to be inexpensive as compared to other types of advertising.

So your possible source could be some table of prizes, for example from a local advertising shop, which show prizes for this and other similar possibilities for advertising.

“larger states wanted congressional representation based on population, while smaller states wanted equal representation. they met in the middle. larger states wanted congressional representation based on population, while smaller states wanted equal representation.” i hope this information you.

Idon't think any of em are right, you need to add the number of what paragraph you got your citation from