Presented below is the production data for six months of the year showing the mixed costs incurred by Madeline Company. Month Cost Units July $6,000 4,000 August $11,250 9,500 September $11,500 9,000 October $11,700 10,500 November $14,000 12,000 December $12,850 10,000 Madeline Company uses the high-low method to analyze mixed costs. The predicted total cost at an operating level of 10,000 units is $11,725 $12,000 $12,850 $11,800 none of the above