How will Mrs.Everdeen and Prim provide for themselves when Katniss is gone? Chapter 3

The only part I remember is that, Peeta's father, Mr.Mellark agreed to help out Prim, and Prim would get goat,cheese, and milk from her goat. But what else would help? Would Mrs.Everdeen start back up doing Medicine, and create them from herbs and get money from that? I also remember something Gale said he would do, was it do have an equal share of his findings in the wood to an agreement he made with Katniss?