The following table shows the total revenue and total cost schedules of a competitive firm. Suppose the output can only

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The following table shows the total revenue and total cost
schedules of a competitive firm. Suppose the output can only take
integer values.
(a) The profit-maximizing quantity is [ Answer
] units.
(In integers, please.)
Quantity (Units)
Total Revenue ($)
Total Cost ($)
0
0
60
1
70
80
2
140
110
3
210
150
4
280
200
5
350
260
6
420
330
7
490
410
8
560
500
(b) Continue from the previous question. At the
profit-maximizing quantity, the average cost is $[ Answer
].
(c) Continue from the previous question. The fixed cost of
the firm is $[ Answer ].
(d) Continue from the previous question. The profit earned
by this firm is $[ Answer ].