Using the following information, answer the required questions. Use a comma in your responses, but not cents. The dollar sign is provided for you. Purchases $32,000 Selling expense $ 960 Inventory, 5,700 6,370 Inventory, September 30 September 1 |Administrative expense 910 Sales 63,000 Purchase returns 1,200 Interest revenue 1,040 a. What is the amount of Cost of Goods Sold? $ b. What is the amount of Income from Operations? $