Mighty Muffler, Inc. operates an automobile service facility that specializes in replacing mufflers on compact cars. The following table shows the costs incurred during a month when 600 mufflers were replaced. (Round "cost per muffler" to 2 decimal places.)

	Number of Muffler Replacements
	500	600	700
Total costs:
Fixed costs		$59,400
Variable costs		35,400
Total costs		$94,800
Cost per muffler replacement:
Fixed cost
Variable cost
Total cost per muffler replacement