The phone bill for a law firm consists of both fixed and variable costs. Refer to the four month data below and apply the high-low method to answer the question. If the company uses 390 minutes in September, how much will the total bill be? (Round your intermediate calculations to two decimal places.)

	Minutes	total bill
may	490	$3200
june	210	2700
july	160	2650
august	330	2800

$3,356.70

$2,381.70

$3,033.00

$2,587.23