The Dorset Corporation produces and sells a single product. The following data refer to the year just completed:Beginning inventory 0Units produced 9,000Units sold 7,000Selling price per unit $ 47Selling and administrative expenses:Variable per unit $ 4Fixed per year $ 58,000Manufacturing costs:Direct materials cost per unit $ 10Direct labor cost per unit $ 6Variable manufacturing overhead cost per unit $ 5Fixed manufacturing overhead per year $ 90,000Assume that direct labor is a variable cost.Required:a. Prepare an income statement for the year...