Assume that a company has two cost drivers-number 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 company's expenses is influenced by both cost drivers. Its cost formulas are $43 per course and $7 per student. The total cost included in the flexible budget for this expense would be: Multiple Choice $870. $928. $1,128. $1,028