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 , fespectively. One of the company's expenses is influenced by both cost drivers. its cost formulas are $47 per course and $5 per student. The activity variance for this expense would be: Muitiple choice 5107C \$57u. 557F \$107 F