need help with this accounting question asap i will give great rating

Following are four graphs representing various cost behaviors. 1. Identify whether the cost behavior in each graph is mixed, step-wise, fixed, or variable. 2. Identify the graph (I, II, III, or IV) that best illustrates the cost behavior for each of the following: (a) Factory policy requires one supervisor for every 10,000 units produced; (b) real estate taxes on factory; (c) electricity charge that includes the standard monthly charge plus a charge for each kilowatt nd of leather used in making shoes