I JUST NEED PART B

A department of Alpha Co. incurred the following costs for the month of September, Varlable costs, and the variable portion of mixed costs, are a function of the number of units of activity: During October, the activity level was 8,200 units, and the total costs incurred were $69,000. Required: o. Calculate the variable costs, fixed costs, and mixed costs incurred during October b. Use the high-low method to caiculate the cost formula for mixed cost (Do not round intermediate calculations and round your answers to 2 decimal places.)