SOLUTION
The profit of the cost of icreams is modeled by
[tex]\begin{gathered} P(c)=0.87c \\ \text{where c=Number of icreams cone } \end{gathered}[/tex]
Since C represent the number of ice creams.
Hence, this value cannot be negative that is less than zero, and also will always a whole number.
Hence the appropriate domain of the function is
[tex]undefined[/tex]
