Final answer:
The Slabs is an anarchist community located in the Low Desert of California. McCandless stayed with the Slabbers when he was in Slab City, where few laws regulate behavior. While the specifics of how McCandless helped the people in Slab City are not mentioned, it is likely that he shared resources and contributed to the community's needs.
Step-by-step explanation:
The Slabs is an anarchist community located in the Low Desert of California, specifically in Slab City. It is a place where few laws regulate behavior or ensure a quality of life. When Christopher McCandless, the subject of the book 'Into the Wild,' was in Slab City, he stayed with a group of people known as 'the Slabbers' who live there permanently. Although McCandless did not explicitly mention how he helped these people in his writings, it can be inferred that he likely shared resources, contributed to the community's needs, and built relationships with the residents.