OHaganBooks.com generates revenue through it o'Books e-book service. Author royalties and copyright fees cost the company $5 per novel, and the monthly cost of operating and maintaining the service...

OHaganBooks.com generates revenue through it o'Books e-book service. Author royalties and copyright fees cost the company $5 per novel, and the monthly cost of operating and maintaining the service amounts to $651. The company is currently charging customers $7 per novel.

Find the associated cost, revenue, and profit functions and use them to determine how many novels must be sold in order to make a profit. (Hint: If the break-even is where they make no profit, you must round up to make a profit.)

To make a profit they must sell at least: