M (n) = 350/n. What is the practical domain? N is the number of people in a band

The pracical domain is no negatives

no zero

domain is all positive integers

depends on what M (n) is

if it is something like books, n can only be numbers that, are factors of 350 because you don't want poeple getting 3 and 3/4 book

if it is something like gallons of water, then n can by any positive number because people can have a fraction of water