The number of blood tests performed and the related costs over the last nine months in Brentline Hospital are given below:

Month	Blood Tests Performed	Blood Test Costs
January	5,115	$	58,968
February	6,600	$	73,640
March	4,565	$	52,478
April	4,015	$	46,440
May	4,175	$	48,746
June	3,300	$	39,320
July	3,875	$	44,752
August	5,010	$	56,890
September	5,045	$	57,958

Required:

1. Using the highlow method, estimate the cost formula for blood tests. (Round cost per unit answer to 2 decimal places.)

2. Using the cost formula you derived above, what blood test costs would you expect to be incurred during a month in which 4,455 blood tests are performed? (Round your intermediate calculations answer to 2 decimal places.)