Question

# The function f(x) is the total amount spent at a store, when purchasing x items that are $5 each and the items are not taxable. What is the practical domain for the function f(x)? all positive, real, whole nuvbers Factors and multiples ANSWERED asked 2021-08-06 The function f(x) is the total amount spent at a store, when purchasing x items that are$5 each and the items are not taxable.
What is the practical domain for the function f(x)?
1) all positive integers
2) all real numbers
3) all whole numbers
4) all positive integers that are multiples of 5.

Therefore the practical domain is $$\left\{0,1,2,3,- - -\right\}$$, which is set of whole numbers.