Frazier Manufacturing Company collected the following production data for the past month: Units Produced Total Cost 1,600 $66,000 1,300 57,000 1,500 67,500 1,100 49,500 If the high-low method is used, what is the monthly total cost equation? Total cost = $9,900 + $36/unit Total cost = $16,500 + $30/unit Total cost = $0 + $45/unit Total cost = $13,200 + $33/unit