Mighty Muffler, Inc., operates an automobile service facility. The table below shows the cost incurred during a month when 600 mufflers were replaced.

	Number of Muffler Replacements
	500	600	700
Total costs:
Fixed costs	A	$ 8,400	C
Variable costs	B	18,000	D
Total costs	E	$26,400	F
Cost per muffler replacement:
Fixed cost	G	H	I
Variable cost	J	K	L
Total cost per muffler replacement	M	N	O

Required:

Fill in the missing amounts, labeled A through O, in the table.