Assume the following information for one of a company's variable expenses: . The amount of the expense in the planning budget is $9,000. The cost formula is $9.00 per hour. The actual level of activity is 900 hours. The spending variance is $190 unfavorable. . The actual amount of the expense must be: Multiple Choice $8,100 $8,490. 0 $8,790 O $8,290. Assume that a company provided the following cost formulas for three of its expenses (where a Perels to the number Rent (fixed) Supplies (variable) Utilities (mixed) $3,000 $4.009 $150 + $0.759 The company's planned level of activity was 2,000 hours and its actual level of activity was 1,945 hours. The actual amount of supplies expense for the period was $7,800. What is the activity variance for supplies expense? Multiple Choice $200 U $220 U $220 F $200 F Assume that the cost formula for one of a company's variable expenses is $5.00 per unit. The company pia actual level of activity was 2,190 units. The actual amount of this expense was $10,800. The activity variance for this expense is: Multiple Choice $150 F $950 U $750 U $150 U