B. If you want to cover the printing costs by printing and selling only 50 copies of the book, at what price must you sell the book?
Type your response here: 35$
C. Based on the book price per copy you calculated in the previous task, write a function to
represent your income if you sell x copies.
Type your response here:
d. After spending $200 on market research, you discover that you can sell many more copies
of your book if you price it at $20. Write new functions for both your expenses and your
income from selling x copies.