The number of blood tests performed and the related costs over the last nine months in Brentline Hospital are given below: Month January February March April May June July August September Blood Tests Blood Test Performed Costa 3,865 $44,193 5,650 $61,580 3,185 $36,444 2,790 $32.096 2,915 $34,097 2,100 $25,370 2,485 $28,705 3,485 $39.289 3,850 $4), 794 Required: 1. Using the high-low 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 3,260 blood tests are performed? (Round your intermediate calculations answer to 2 decimal places.) Vanable cost Faced cost Total cost