Consider a firm that operates in a perfectly competitive market. Currently the firm is producing 50 units of output and at that output level, marginal revenue is $6. Suppose that the firm increases output by 80%. Total revenue will be

	a.	$300.
	b.	$450.
	c.	$540.
	d.	the same since price will fall by 50%.

Table Bill's Birdhouses

COSTS	REVENUES
Quantity Produced	Total Cost	Marginal Cost	Quantity Demanded	Price	Total Revenue	Marginal Revenue
0	$0	--	0	$80		--
1	$50		1	$80
2	$102		2	$80
3	$157		3	$80
4	$217		4	$80
5	$285		5	$80
6	$365		6	$80
7	$462		7	$80
8	$582		8	$80

Refer to theTable. What is the total revenue from selling 8 units?

	a.	$80
	b.	$382
	c.	$560
	d.	$640