please help asap

Assume that a company has two cost drivers-number of textbooks and number of instructors. The planned number of textbooks and instructors were 5 and 100 , espectively. The actual number of textbooks and instructors were 6 and 110 , respectively. One of the company's expenses is influenced by both cost drivers. Its cost formulas are $50 per textbook and $5 per instructor. The total actual amount of this expense is $880. The spending variance for this expense would be: Multiple Choice $130 U. $30 $30F. $130F