Bargain Rental Car offers rental cars in an off-airport location near a major tourist destination in California. Managemernt would like to better understand the variable and fixed portions of it car washing costs. The company operates its own wash facility in which each rental car that is returned is thoroughly cleaned bef 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: car fore being released for rental to another January February March April May June July August September October November December 1 Returns Car Wash Costs 2,480 2,500 2,800 3,000 3,788 5,188 5,5e0 5,580 4,780 4,180 2,280 2,980 $ 11,200e 13,200 $12,000 s 14,608 16,400 $ 23,700 s 22,400 22,700 s 23,00e s 21,700 $ 10,900 S 14,90e 2. Using least-squares regression, estimate the variable cost per rental return and the monthly fixed cost incurred to 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. 2,852 s 392 Fixed cost per month Variable cost per rental return