plz answer asap

Below are the processing costs of Darnell Products observed over the last 10 months: Morith 1 2 3 4 S 6 7 Units Produced 7,500 11,000 14,500 5,500 9,000 8,500 13,500 4,000 11,500 6,000 Processing Cost $44,000 60,000 58,990 20,000 47,000 52,000 25,000 21,000 52,000 41,000 8 9 10 a- Use the high low method to determine the variable cost per unit and fixed cost per month. Express your results in the form of a linear equation y=a + bx (15 marks) b- Predict the total processing cost if 14,000 units are produced