BrightPlastics Inc. produces plastic containers and utilizes standard costing for its inventory valuation. The standard cost per unit for direct materials is $5, direct labor is $8, and variable overhead is $3. During the month, BrightPlastics Inc. produced 10,000 units and incurred actual costs as follows:

• Direct Materials: $48,000
• Direct Labor: $82,000
• Variable Overhead: $28,000

Calculate the total direct materials, direct labor, and variable overhead variances.