Rachael’s Restaurant, a fast-food restaurant company, operates a chain of restaurants across thenation. Each restaurant employs eight people; one is a manager paid a salary plus a bonus equalto 4 percent of sales. Other employees, two cooks, one dishwasher, and four servers, are paidsalaries. Each manager is budgeted $3,000 per month for advertising costs. Classify each of the following costs incurred by Rachael’s Restaurant as fixed, variable, ormixed:a. Advertising costs relative to the number of customers for a particular restaurant. b. Rental costs relative to the number of restaurants. c. Cooks’ salaries at a particular location relative to the number of customers. d. Cost of supplies (cups, plates, spoons, etc.) relative to the number of customers.