Quantity	Variable Costs	Total Costs
0	0	40
1	10	50
2	20	60
3	30	70
4	40	80
5	50	90
6	60	100
7	70	110
8	80	120

According to the table, what is the average fixed cost at 4 units of output?

Instructions: when answers are not whole numbers you should leave two numbers after the decimal. E.g. If the answer is 10.2778 it can be entered as 10.28

Answer: