Pricing for Catalog/Flyer

How much should I charge someone to make a catalog with her groups, rates, pictures for her photography business?
Shouldn’t take so long as she will provide me with text and photos. I just need to work on the layout.
Probably like a 7-10 page catalog.

It’s for a friend so I would rather charge a set price and then if by choice I spend more time on it, I won’t charge her more for that.