Ames Company had the following costs for the past three years in which it produced 20,000, 24,000, a

Ames Company had the following costs for the past three years in which it produced 20,000, 24,000, and 30,000 units, respectively.Year1Year 2Year 3Direct Materials$40,000$48,000$60,000Utilities Expense22,00026,00032,000Property Taxes6,0006,0006,000Travel Expense3,0003,0003,000Direct Labor30,00036,00045,000Maintenance Expense11,00013,00016,000Identify which of the costs were variable, fixed, and mixed.