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Peasch corporation's highest point of total cost was $75,000 in June. Their point of lowest cost was $50,000 in December. The company makes a single product. Production volume in June was 12,000 units; production volume in December was 8,000 units. What is the variable cost per unit? Select one: O $5.00 per unit $5.50 per unit O $9.38 per unit O $5.77 per unit O $6.25 per unit $8.50 per unit