A dead body shows signs of rigor mortis in all of their upper body and in the top of their legs. Approximately how many hours has the person been dead?

Rigor mortis first appears approximately 1-2 hours after death. Progressive stiffening occurs for approximately 12 hours, persists for approximately 12 hours, then diminishes over the next 12 hours as tissues break down as a result of autolysis and putrefaction.

Explanation:

b. read the phase at the intersection of any given temperature and pressure.