riggins, Inc. manufactures one product called tybos. The company uses a standard cost system and sells each tybo for $8. At the start of monthly production, Riggins estimated 9,500 tybos would be produced in March. Riggins has established the following material and labor standards to produce one tybo: During March 2022, the following activity was recorded by the company relating to the production of tybos: 1. The company produced 9,000 units during the month. 2. A total of 24,000 pounds of materials were purchased at a cost of $66,000. 3. A total of 24,000 pounds of materials were used in production. 4. 5,000 hours of labor were incurred during the month at a total wage cost of $55,000. Instructions Calculate the following variances for March for Riggins, Inc. (a) Materials price variance (b) Materials quantity variance (c) Labor price variance (d) Labor quantity variance