Use the following to answer questions -8 Johnson Company has provided the following data for the first five months of the year: Machine Hours Lubrication Cost January 120 February 160 March 200 April 150 May 170 $750 $870 $790 6 Using the high low method af analnis, the estimated variable lutrication cost per machine hour is closest to a. $1.40 b $1.25 . $0.67 d $1.50 Using the high low method of analysis, the estimated monthly fiwed component of lubrication cost is dlesest to $57o b $560 $585 $565 At 190 machine hours, the expected lubrication cost is expected to be $760 b. $76 . $855 d. $860