Roberts Company has the following information available for the current year: Standard: Material 4.25 feet per unit @ $2.75 per foot Labor 7 direct labor hours @ $9.25 per Actual: Material 128,000 feet used (130,000 feet purchased @ $2.80 per foot) Labor 212,000 direct labor hours incurred @ $9.30 per hour 30,000 units were produced Refer to Roberts Company. a. Compute the labor rate and efficiency variances, indicate whether it is favorable or unfavorable. b. Prepare the journal entry to accrue direct labor cost and record the labor variances. c. Record the year-end adjusting entry to close the labor variances, assuming that they are insignificant