Question 1187018
the total cost formula is:


total cost = 110,000 + 5.5 * n


110,000 is the cost for typesetting.
5.5 is the cost for printing and binding each book.
n is the number of books.


the cost for the typesetting is called the fixed cost.
it's an up front cost that is incurred, regardless of the number of books that are produced.


the cost for each book is called the incremental cost.
it is the additional cost for printing and binding each book that does not include the fixed cost.


the total cost for 10,000 books is 110,000 + 5.5 * 10,000 = 110,000 + 55,000 = 165,000.


the average cost for producing 10,000 books is 165,000 / 10,000 = 16.5 per book.


this average cost includes the fixed cost plus the incremental cost.


the cost to produce one additional book, once you have paid for the typesetting, is 5.5.