3. The demand schedule facing a firm is shown below. 1) Complete the total revenue, marginal revenue, and average revenue data in the table. 2) What happen to the difference between selling price and marginal revenue as Q rises? 3) How many units would the firm sell if the average cost is $8 per unit output and if the firm aims to maximize its economic profit (revenue minus costs)? What price would the firm charge? 4) Can the firm charge $18 ? What is the corresponding economic profit? 5) What is the economic profit of when the firm charges $14