Sed Help Save & E Courington Detailing's cost formula for its materials and supplies is $1900 per month plus $9 per vehicle. For the month of August, the company planned for activity of 85 vehicles, but the actual level of activity was 50 vehicles. The actual materials and supplies for the month was $2,530. The materials and supplies in the flexible budget for August would be closest to Multiple Choice 52.530 $2.350 O $2,5 O S14