So a young lady offers a free black a partnership in running a coffeehouse but the free black politely declines because she can’t afford to run it with her. the young lady says that they are sharing the business because she wants them too and it’s completely free. what’s a character trait to describe the young lady based on her actions?

Hey there! :D

From the passage, we know that the young lady is giving someone, not her race a great opportunity. She might be scolded or discriminated for doing this. Not only does she offer the free black a partnership, but she is willing to do so for free. This is generousity. She doesn't have to do any of this. This is also selflessness. She is not thinking about the negative consequences when she gets a free black partner with her shop. From the context of how the paragraph was written, using the term 'free black', this might have been a unique situation. She is being openminded as well. Letting someone with very few opportunities have a great chance of becoming successful. 

I hope this helps!
~kaikers