3.) Babylon Furniture manufactures sofa sets and seats. The company uses a standard cost accounting system. In June 2022, the actual production amount is 20,000 seats. The following standard and actual cost data applied to the month of June when the normal capacity was 18,000 direct labor hours. All materials purchased were used in production. Cost Element Standard (per unit) Actual (per unit) Direct materials 5 meters at $6.90 per meter 5,3 meters at $7 per meter Direct labor 1.0 hours at $11.40 per hour 0,9 hours at $11 per hour a.) Compute total, price and quantity variances for direct materials. b.) Compute total, rate and efficiency variances for direct labor