In order to calculate the temperature after 10 minutes, let's use the value of t = 10 in the function T(t) and calculate the function value:
[tex]\begin{gathered} T(t)=66+144e^{-0.04t}\\ \\ T(10)=66+144e^{-0.04\cdot10}\\ \\ T(10)=66+144e^{-0.4}\\ \\ T(10)=66+96.53\\ \\ T(10)=162.53 \end{gathered}[/tex]Rounding to the nearest tenth, the temperature is 162.5 °F.