Answer:
c. $942 U
Explanation:
Spending variance = Standard cost at 20 snow days - Actual operating cost.
Spending variance = [$2,960 + ($326*18)] - $9,770
Spending variance = $8,828 - $9,770
Spending variance = $942 (Unfavorable).
Note: The actual level of activity = 18 snow-days.