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Sue's Surfboards hires workers at $500 a week. Its total xed cost is $1,000 a week. The table shows the firm's total product schedule. Labour Output (workers per week) (surfboards per week) 1 30 2 70 3 120 4 160 When output is 30 surfboards a week, average fixed cost is $ 33.33 a surfboard and average variable cost is $ 16.86 a surfboard. >1:- Answer to 2 decimal places. When output is 30 surfboards a week, average total cost is increases from 0 to 30 surfboards a week marginal cost is >>> Answer to 2 decimal places