Schumacher Company uses the perpetual inventory system, and it engaged in the following transactions during 2009: 1) Started the business by issuing common stock for $7,500 cash. 2) Paid cash to purchase $5,000 of inventory. 3) Sold inventory that cost $3,000 for $7,250 cash. 4) Incurred and paid operating expenses, $250. Schumacher Company engaged in the following transactions during 2010: 1) Paid cash to purchase $5,800 of inventory. 2) Sold inventory that cost $7,000 for $15,150 cash. 3) Incurred and paid operating expenses, $500. a. The gross margin for the year 2009 is b. The amount of Retained Earnings at December 31, 2009, is

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