Economic Questions!! ?

Question

Can someone please help me with this economic questions!! I will really appreciate it . thanks a lot for those who helped:

1. Suppose the minimum point of the LRAC curve of a soft-drink firms cola is $1 per liter.Under conditions of monopolistic compettion, will the price of a liter bottle of cola in the long run be above $1, equal $1, less than $1, or impossible to determine?

2. List four goods or services that you have purchased that we produced by an oligopolist. Why are these industries oligopolistic, rather than monopolistically competitive?

3. What might be a general distinction between oligopolists that advertise and those that do not?

Thanks a lot again for those who helped.

Answer 1

Here is the answer to #3

Bascially, the oligopolist who advertises will not make as much per product, but is more likely to sell more products.