Chloe's Cafe bakes croissants that it sells to local restaurants and grocery stores. The average costs to bake the croissants are $0.45 for 2,100 and $0.40 for 4,200. Required: If the total cost function for croissants is linear, what will be the average cost to bake 3,400? (Do not round intermediate calculations. Round your final answer to 4 decimal places.) Average cost