1. Assume that the cost formula for one of a companys variable expenses is $4.50 per unit. The companys planned level of activity was 2,000 units and its actual level of activity was 2,180 units. The actual amount of this expense was $10,800. The activity variance for this expense is:

2. Assume that a company has two cost driversnumber of courses and number of students. The planned number of courses and students were 5 and 100, respectively. The actual number of courses and students were 6 and 110, respectively. One of the companys expenses is influenced by both cost drivers and it has a fixed element as well. Its cost formulas are $40 per course, $4 per student, and $1,000 per period. The total cost included in the planning budget for this expense would be:

3. Assume that a company provided the following cost formulas for three of its expenses (where q refers to the number of hours worked):

Rent (fixed)	$ 3,000
Supplies (variable)	$ 5.80q
Utilities (mixed)	$150 + $0.75q

The companys planned level of activity was 2,000 hours and its actual level of activity was 1,850 hours. How much supplies expense would be included in the flexible budget?

4. Assume that a company provided the following cost formulas for three of its expenses (where q refers to the number of hours worked):

Rent (fixed)	$ 3,000
Supplies (variable)	$ 4.00q
Utilities (mixed)	$195 + $0.75q

The companys planned level of activity was 2,000 hours and its actual level of activity was 1,900 hours. How much utilities expense would be included in the planning budget?