1 (6 Marks) Entity Z is trying to obtain a cost estimate for the costs of repairs. The following monthly repair costs have been recorded for the past six months. Month machines repaired Cost of repairs R 123456 38 31,000 2 41 32,700 3 25 26,500 21 23,600 36 29,900 6 32 28,900 Required: Use high/low analysis to estimate the fixed costs of repairs each month and the variable cost per machine repaired. Estimate the expected costs of repairs in a month when 30 machines are repaired