Bargain Rental Car offers rental cars in an off-airport location near a major tourist destination in California. Management would like to better understand the variable and fixed portions of its car washing costs. 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 variable portion of its car washing costs relates to the number of rental returns. Accordingly, the following data have been compiled: Rental Month January February March Car Wash Costs 2,300 $10,925 2,506 11,332 April 3,725 12,422 May 2,968 $13,850 July August 3,353 14,935 $ 15,738 September October 3,057 $13,563 November 2,735 December 12,683 #13,796 2. Using least-squares regression, estimate the variable cost per rental return and the monthly fixed cost incurred to wash cars. (Round Fixed cost to the nearest whole dollar amount and the Variable cost per unit to 2 decimal places.) Answer is complete but not entirely correct. Faed cost per month 1,375 O Variable cost per rental return 4.04 O D Br