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 $58 per course and $7 per student. The total cost included in the flexible budget for this expense would be: $870. $1,018. $1,118. O $1,218