3. Assume the cost object is the companys various sales representatives. Furthermore, assume that the company spent $50,000 of its total fixed selling expense on advertising and the remainder of the total fixed selling expense comprised the fixed portion of the company's sales representatives compensation. a. When the company sells 20,000 units, what is the total direct selling expense that can be readily traced to individual sales representatives? (Round per unit value to 2 decimal places.) b. When the company sells 20,000 units, what is the total indirect selling expense that cannot be readily traced to individual sales representatives? Show less 3a. Sales commissions per unit 3a. Number of units sold 3a. Total sales commission $0 3a. Fixed portion of sales representatives compensation 3a. Total direct selling expense $0 3b. The total indirect selling expense