Dorothy is trying to better understand her company's overhead costs to respond to an e-mail from her supervisor. She quickly gathered information from the last 3 months regarding production counts and key overhead costs, as follows. (a) Based on just the information provided above, help Dorothy classify each of the three costs by behavior: varlable, fixed, or mixed. ETextbook and Medla If these 3 months are representatwe of the companys typical production what is its relevant range? The nekvant range is from units to units