3. H Inc. produces cases for iPods for world distribution. The standard costs for making the iPods are as follows: Standard costs Actual costs Direct materials 750 pounds, at $70 800 pounds, at $64 Direct labor 2400 hours, at $22 2250 hours at $23.60 Factory overhead Rates per hour, based on 100% of normal capacity of 2750 labor hours: Variable cost, $4.80 $12300 - variable cost Fixed cost, $7.00 $19250 - fixed cost Instructions: NOTE: SHOW ALL WORK. 1. Determine the three (3) direct materials variances. 2. Determine the three (3) direct labor variances 3. Determine the three (3) factory overhead variances