Use the following information for questions 17-20. King Air uses two measures of activity, fligh and performance reports. ts and passengers, in the cost formulas in its budgets The cost formula for plane operating costs is $49,340 per month plus $2,635 per flight plus $2 per passenger. The company expected its activity in January to be 73 flights and 191 passengers, but the actual activity was 75 flights and 193 passengers. The actual cost for plane operating costs in January was $246,440. 17. The plane operating costs in the planning (static) budget for January would be: A) $247,351 B) $246,440 C) $239,868 D) $242,077 18. The plane operating costs in the flexible budget for January would be: A) $246,440 B) $247,351 C) $248,709 D) $242,077 19. The activity variance for plane operating costs in January would be A) $5,274 (F) B) $4,363 (U) C) $4,363(F) D) $5,274 (U) 20. The spending variance for plane operating costs in January would be A) $911 (U) B) $911 (F) C) $4,363 (P) D) $4,363 (U)