Final answer:
Bigger is contemplating stealing the money from Mary's purse, as he is internally struggling with the idea of theft.
Step-by-step explanation:
The student has asked what Bigger plans to do with Mary's purse on page 94. From the text provided, Bigger is grappling with the idea of theft. Although he initially feels sickened by the thought, he contemplates the consequences of returning the money compared to keeping it. This internal struggle indicates that Bigger is considering stealing the money.