Mattey Publishing Company (Mattey) is a publisher of novels. The monthly equipment maintenance cost for Mattey is considered to be a mixed cost. The variable portion of the cost is related to the number of novels published. The production volume and maintenance costs for the past six months are presented below. Mattey uses the high-low method to separate mixed costs into its fixed and variable portions.

Month	Volume of Production (Number of Novels)	Equipment Maintenance Costs
May	361,000	$3,900
June	561,000	$6,600
July	264,000	$4,900
August	100,000	$2,100
September	521,000	$8,100
October	248,000	$4,700

Do not enter dollar signs or commas in the input boxes.

a) Calculate the variable rate for the equipment maintenance cost. Round your answer to 5 decimal places. Variable Cost per Unit: $ b) Calculate the fixed portion of the equipment maintenance cost. Round your answer to the nearest whole number. Fixed Cost: $ c) Assume that 420,000 novels is the budgeted production level for October. Using the results of the high-low method in parts a) and b), what is the expected total equipment maintenance cost for October? Round your answer to 2 decimal places. Expected total equipment maintenance cost for October: $