Westonci.ca offers fast, accurate answers to your questions. Join our community and get the insights you need now. Experience the ease of finding precise answers to your questions from a knowledgeable community of experts. Discover detailed answers to your questions from a wide network of experts on our comprehensive Q&A platform.

The cost of producing 390 mp3 players is $3415. Producing 670 mp3 players would cost $5375. Find the average cost per mp3 player of the additional 280 mp3 players over 390.