Suppose you write a book. The printer charges $4 per book to print it, and you spend $5500 on advertising. You sell the book for $15 a copy.
AHow many copies must you sell to break even (total cost equals income from sales)?
BWhat is your income (or total cost) for that many copies?
AHow many copies must you sell to break even (total cost equals income from sales)?
BWhat is your income (or total cost) for that many copies?