E20-2 Horn's Printing job cost records yielded the following information: Date Job No. Started Finished Sold Total Cost of Job at March 31 I February 21 March 16 March 17 $ 2,800 2 February 29 March 21 March 26 17.000 3 March 3 April 11 April 13 5,900 4 March 7 March 29 April 1 6.200 5 March 9 March 30 April 2 5.600 6 March 22 7 March 23 April 11 March 27 April 13 1.300 March 29 5.400 Required Compute Horn's cost of

(a) work in process inventory at March 31,

(b) finished goods inventory at March 31, and

(c) cost of goods sold for March.