Lightning Electrical Contractors has incurred the following costs in its operations for the last 6 months of Financial Year 2020 2021 Month Jan Number of Jobs 49 53 55 Feb Mar Total Cost $ 17,620.00 $ 18,700,00 $ 19,000.00 $ 17,810.00 $ 18,070.00 $ 16,100.00 Apr 48 May 50 Jun 30 a) Estimate the monthly fixed cost and the variable cost per job (up to 2 decimal places) using the high-low method. 22-4 marks)