42. Thomasson Air uses two measures of activity, flights and passengers, in the cost formulas in its budgets and performance reports. The cost formula for plane operating costs ?s $36,220 per month plus $2,054 per flight plus $1 per passenger. The company expected its activity in April to be 82 flights and 232 passengers, but the actual activity was 81 flights and 237 passengers. The actual cost for plane operating costs in April was $197,000. The activity variance for plane operating costs in April would be closest to: $2,049 F $7,880 F $2,049 U $7,880 U