Answer:
f. $615
Step-by-step explanation:
The standard cost for 2,850 pounds is $18,328.5 (=$6.45 * 2,850)
Materials purchase-price variance–favourable $855; it means standard price is higher and actual material price. Then we have actual cost for purchased 2,850 pounds is $17,527.5 (=$18,328.5-$855)
Then the actual price per pound $6.15 (=$17,527.5/2,850)
The difference between purchased and actual quantity used is 100 pounds (= 2,850 pounds - 2,750 pounds)
The direct materials usage variance for the period is $650 (= $6.15 * 100 pounds)