A small publishing company is planning to publish a new book. Let C be the total cost of publishing the book (in dollars). Let N be the number of copies of the book produced. For the first printing, the company can produce up to 300 copies of the book. Suppose that C=20N+600 gives C as a function of N during the
first printing

Identify the correct description of the values in both the domain and range of the function. Then, for each, choose the most appropriate set of values.