Keem JAng-An Inc. recorded the following data for last six months activities:

Month . Maintenance costs ($). No. of direct labor hours
Jan 8740...... 812
Feb 8530...... 775
Mar 8260...... 725
Apr 8670...... 758
May 8590...... 790
Jun 8500...... 768


Using the high-low method, the companys

[2 marks]
(a) variable maintenance cost per direct labor hour (2 decimal places) is $ unanswered

[2 marks]
(b) fixed maintenance cost per month is $ unanswered

[1 mark]
(c) If the company's direct labor workforce works for 838 labor hours in July, the expected maintenance cost will be $ unanswered