A company reports the following information:

Month	Units Sold	Total Cost
January	1,050	$ 6,600
February	1,950	$ 7,200
March	2,700	$ 9,600
April	750	$ 4,530

Using the high-low method, the estimated total fixed cost is:

Multiple Choice

$3,750.

$6,150.

$4,530.

$1,650.

$2,580.