If the marginal cost of the 100th unit is $3.25, the total cost of producing 100 units is $825, and the fixed cost is $500, average total cost is increasing. average variable cost is higher than marginal cost. marginal cost is falling. average variable cost is at its minimum.

If the marginal cost of the 100 th unit is $3.25, the total cost of producing 100 units is $825, and the fixed cost is $500, average total cost is increasing. average variable cost is higher than marginal cost. marginal cost is falling. average variable cost is at its minimum