PLEASE provide a very detailed answer so it can be referenced in layman terms, thanks

Iscillauves: Complete this question by entering your answers in the tabs below. 3. Assume the cost object is the company's various sales representatives. Furthermore, assume that the company spent $64,800 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 20,250 units, what is the total direct selling expense that can be readily traced to individual sales representatives? Note: Round per unit value to 2 decimal places. b. When the company sells 20,250 units, what is the total indirect selling expense that cannot be readily traced to individual sales representatives? Iscillauves: Complete this question by entering your answers in the tabs below. 3. Assume the cost object is the company's various sales representatives. Furthermore, assume that the company spent $64,800 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 20,250 units, what is the total direct selling expense that can be readily traced to individual sales representatives? Note: Round per unit value to 2 decimal places. b. When the company sells 20,250 units, what is the total indirect selling expense that cannot be readily traced to individual sales representatives