The average cost function for the weekly manufacture of retro portable CD players is given by ax) = 180,000X_1 + 20 + 0.0002X dollars per player, where x is the number of CD players manufactured that week. Weekly production is currently 5,000 players and is increasing at a rate of 500 players per week. What is happening to the average cost? (Round your answer to the nearest cent.) The average cost is l--Seiect-- V at a rate of $ per player per week