12 2.5 Gabriel Company uses the high low method to estimate mixed costs. The company's controller would like to estimate the factory's maintenance cost, which is a mixed cost, for the coming period. Data for the past four months are as follows: Maintenance Machine cost hours June $11,000 575 July $11,400 610 August $10,200 510 September $10,725 550 If machine hours is the best activity driver for maintenance cost, then what is the estimated total maintenance cost for the month of October if the firm expects to use 600 machine hours in October? O $7,500 O $6,120 $4,080 O $11,280 None of the above