7a : . Lump-Sum Tax The city government is considering two tax proposals: . A lump-sum tax of $300 on each producer of hamburgers. . A tax of $1 per burger, paid by producers of hamburgers. Which of the following statements is true as a result of the lump-sum tax? Check all that apply. O Marginal cost will increase. Average total cost will increase! O Average fixed cost will increase. O Average variable cost will remain unchanged. Which of the following statements is true as a result of the per-burger tax? Check all that apply. O Average variable cost will increase. Average total cost will increase. Average fixed cost will increase. O Marginal cost will remain unchanged.7b ci. Firm's Revenue A firm in a competitive market receives $880 in total revenue and has marginal revenue of $20. The firm's average revenue is and units were sold.7c : Firm's Cost Schedule Manuel's Juice Bar has the following cost schedules: In the following table, complete the marginal cost, average variable cost, and average total cost columns. Quantity Variable Cost Total Cost Marginal Cost Average Variable Cost Average Total Cost (Vats of juice) (Dollars) (Dollars) (Dollars) (Dollars) [Dollars) 0 30 un 35 WNA 15 45 30 60 50 80 75 105 105 135 On the following graph, use the orange points (square symbol) to plot the marginal-cost curve for Manuel's Juice Bar. (Note: Be sure to plot from left to right and to plot between integers. For example, if the marginal cost of increasing production from 1 vat of juice to 2 vats of juice is $5, then you would plot a point at (1.5, 5).) Then use the purple points (diamond symbol) to plot the average-variable cost curve starting at 1 vat of juice, and use the green points (triangle symbol) to plot the average-total-cost curve also starting at 1 vat of juice. 40 Marginal Cost25 Average Variable Cost 20 15 Average Total Cost 10 3 5 Quantity (Vats of juice) ch of the following statements are true according to the previous graph? Check all that apply. The marginal-cost curve lies above the average-variable-cost curve. The marginal-cost curve is below the average-total-cost curve when output is less than four and average total cost is declining. The marginal-cost curve is below the average-total-cost curve when output is greater than four and average total cost is rising