Managerial Economics Chapter 14

Managerial Economics Chapter 14 - Q 1 pg. 541
The price elasticity of demand for a textbook sold in the United States is estimated to be -2.0, whereas the price elasticity of demand for books sold overseas is -3.0. The U.S. market requires hardcover books with a marginal cost of $40; the overseas market is normally served with softcover texts on new print, having a marginal cost of only $15. calculate the profit-maximizing price in each market. 

 break it down step by step. If you are using the MR= P (1+1/E d which I know you will be break it all the way down