EZ Rental Car offers rental cars in an off-airport location near a major tourist destination in Florida. Management would like to better understand the behavior of the companys costs. One of those costs is the cost of washing cars. The company operates its own car wash facility in which each rental car that is returned is thoroughly cleaned before being released for rental to another customer. Management believes that the costs of operating the car wash should be related to the number of rental returns. Accordingly, the following data have been compiled: Month Rental Returns Car Wash Costs January 2,310 $ 10,113 February 2,453 $ 12,691 March 2,641 $ 10,905 April 2,874 $ 12,949 May 3,540 $ 15,334 June 4,861 $ 21,455 July 5,432 $ 21,270 August 5,268 $ 19,930 September 4,628 $ 21,860 October 3,720 $ 18,383 November 2,106 $ 9,830 December 2,495 $ 11,081 Required: Using least-squares regression, estimate the fixed cost and variable cost elements of monthly car wash costs. (Round the "Variable cost per unit" to 2 decimal places and "Fixed cost" to the nearest dollar amount. Omit the "$" sign in your response.) Fixed cost $ Variable cost per unit $