To find the time of death, we will use Newton's Law of Cooling, which states:

To find the time of death, we will use Newton's Law of Cooling, which states:

$$T(t) = T_s + (T_0 - T_s)e^{-kt}$$

where:

• $T(t)$ is the temperature of the body at time $t$.
• $T_s$ is the surrounding temperature.
• $T_0$ is the initial temperature of the body at the reference time $t=0$.
• $k$ is the cooling constant.

Step 1: Identify the given information.

• Room temperature, $T_s = 20^\circ \text{C}$.
• Normal body temperature (temperature at time of death), $T_{death} = 37.2^\