Assume you inherit 40 copies of the textbook for ECON 3125. You plan to sell these textbooks in two markets: directly to students on campus, and sell them online on ebay.
Here are the two demand equations:
Student Demand:P = 200 - 2Q
Ebay Demand:P = 250 - 5Q
If your goal is to maximize total revenue, how many books will you sell to students on campus?