Post-Class Quiz - Chapter 3 Saved 20 The number of blood tests performed and the related costs over the last nine months in Brentine Hospital are given below: Blood Tests Blood Month Performed Test Costs January 4,345 $ 55,173 February 6.500 $79.000 March 3.770 $ 47.882 April 3,030 $ 39,130 May 3.250 $42,286 June 2.400 $32,260 July 2.900 $ 37,516 August 4,025 $50,679 September 3.880, $49,544 Required: 1. Using the high-low method, estimate the cost formula for blood tests (Round cost per unit answer to 2 decimal place)