Please show steps and explanations to these questions.

- Obj. 3 Alvarado Company produces a product that requires 3.0 standard pounds per unit. The standard price is $6.00 per pound. If 8,000 units used 23,900 pounds, which were purchased at $6.20 per pound, what is the direct materials (a) price variance, (b) quantity variance, and (c) cost variance