Assume the following information for one of a company's variable expenses: . The activity variance is $880 favorable. The actual amount of the expense is $8,300. The planned level of activity is 1,000 hours. The actual level of activity is 900 hours. The cost formula for this expense must be: Multiple Choice O $9.10 per hour. $8.10 per hour. $9.80 per hour. $8.80 per hour. Assume that a company's planned level of activity was 2,000 units and its actual level of activity was 2,200 units. The spending variance for one of its fixed expenses was $200 favorable. The actual amount of the fixed expense was $10,620. What amount of this expense would be included in the company's planning budget? Multiple Choice $10.820 $8,820 $11,820 $9.820 Assume that the cost formula for one of a company's variable expenses is $5.00 per unit. The company's planned level of activity was 2,000 units and its actual level of activity was 2,200 units. The spending variance was $850 unfavorable. What is the actual amount of this expense? Multiple Choice $8,850 $11,850 $9,850 $11,000 Assume that the amount of one of a company's variable expenses in its flexible budget is $40,000. The actual amount of the expense is $42,000 and the amount in the company's planning budget is $43,600. The activity variance for this expense is: Multiple Choice $3,600 U. $3,600 F $1,800 F $1.800 U