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References Mailings Review View Help AaBbCd AaBbCd AaBb AaBb T Normal T No Spac. Heading 1 Title -e-A- AaBb Subtit Styles 3. The table below shows how the number of university classrooms cleaned in an evening varies with the number of janitors: 1 Janitors per 0 Cung Classrooms 0 cleaned per Levering 12 16 | 17 | a. What is the marginal product of the second janitor? b. What is the average product of four janitors? C. Is the addition of the third janitor associated with increasing, diminishing or negative marginal returns? Explain. Is the addition of the fourth janitor associated with increasing, diminishing or negative marginal returns? Explain. e. Is the addition of the seventh janitor associated with increasing, diminishing, or negative marginal returns? Explain COBU220 Assessment questions 52020 (7) - AutoRecovered - Compatibility Mode - References Mailings Review View Help a- A A.EE cl AaBb AaBb 1 Normal T No Spac... Heading 1 Title - Paragraph Styles 4. The graph shows the perfect competition market 250 300 400 Ourput per day The exhibit shows a perfectly competitive firm that faces demand curve d. has the cost curves shown, and maximizes profit. The firm will produce units of output per day b. The exhibit shows a perfectly competitive firm that faces demand curve d has the cost curves shown, and maximizes profit. The firm's total revenue per day is: C. The exhibit shows a perfectly competitive firm that faces demand curve d has the cost curves shown, and maximizes profit. The firm's total cost per day is