The demand for Professor Swinnen’s new book is given by the function Q= 2,000 -100p.
To sell the book, it must be typeset (a fixed cost), and copies must be printed.
If the cost of having the book typeset is $7,000, if the marginal cost of printing an extra copy is $4, and if he has no other costs, then he would maximize his profits by
a.having it typeset and selling 400 copies