3. Verona Tech is a vocation school. The school bases its budgets on two of students and number of courses. The school uses the following data in budgeting: Variable cost per its Variable cost per student Fixed cost course $20 s50 $30 per month $4,000 Faculty wages Course supplies Administrative expenses $2.000 so $1,000 $10 $20 In July, the school budgeted for 300 students and 15 courses. Actual results for the month appear below: Number of Students280 Number of Courses Faculty wages Course supplies Administrative expenses $8,300 21 $4.200 $4,800 What is the spending variance for course supplies (choose the closest answer)? , $100 U B. $50 U C $100 F .550 F E. $350 F