On the graph input tool, change the number found in the Quantity Demanded field to determine the prices that correspond to the production of 0, 10, 20, 25, 30, 40, and 50 units of output. Calculate the total revenue for each of these production levels. Then, on the following graph, use the green points (triangle symbol) to plot the results. (?) 1880 A 1692 1504 Total Revenue 1316 1128 TOTAL REVENUE (D ollars) 840 752 564 378 188 15 20 25 30 35 40 45 QUANTITY ( Number of units) Calculate the total revenue if the firm produces 10 versus 9 units. Then, calculate the marginal revenue of the 10th unit produced. The marginal revenue of the 10th unit produced is S Calculate the total revenue if the firm produces 20 versus 19 units. Then, calculate the marginal revenue of the 20th unit produced. The marginal revenue of the 20th unit produced is S Based on your answers from the previous question, and assuming that the marginal revenue curve is a straight line, use the black line (plus symbol) to plot the firm's marginal revenue curve on the following graph. (? 150 Marginal Revenue MARGINAL REVENUE (Dollars) 10 15 20 25 30 35 40 45 50 QUANTITY (Units) Comparing your total revenue graph to your marginal revenue graph, you can see that when total revenue is decreasing, marginal revenue is