I need the answers of both a and b parts. Thanks.

The following standards have been established for a raw material used to make product 192: Standard quantity of the material per unit of output........ Standard price of the material......... 4.5 pounds $13.90 per pound The following data pertain to a recent month's operations: Actual material purchased........ Actual cost of material purchased Actual material used in production .... Actual output..... 2,000 pounds $26,200 1,300 pounds 220 units of product 192 The direct materials purchase variance is computed when the materials are purchased. Required: a. What is the materials price variance for the month? b. What is the materials quantity variance for the month