Cover-to-Cover Company is a manufacturer of shelving for books. The company has compiled the following cost data, and wants your help in determining the cost behavior. After reviewing the data, complete requirements (1) and (2) that follow Total Total Units Produced 7,000 shelves 14,000 shelves 28,000 shelves 35.000 shelves Total Machine Depreciation Cost $125,000 $125,000 $125,000 $125,000 Lumber Cost Utilities Cost $84,000 $168,000 $336,000 $420,000 $9,050 $17,100 $33,200 $41,250 1. Determine whether the costs in the table are yariable, fixed, mixed, or none of these Variable Cost Fixed Cost Mixed Cost None of these Lumber Utilities Depreciation Points: 3/3