Rhino Airlines 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 is $36,180 per month plus $2,046 per flight plus $1 per passenger. The company expected its activity in November to be 78 flights and 228 passengers, but the actual activity was 77 flights and 233 passengers. The actual cost for plane operating costs in November was $191,500. The activity variance for plane operating costs in November would be closest to:

Tri fecta, a partnership, had revenues of $369,000 in its first year of operations. the partnership has not collected on $45,000 of its sales and still owes $39,500 on $155,000 of merchandise it purchased. there was no inventory on hand at the end of the year. the partnership paid $27,000 in salaries. the partners invested $48,000 in the business and $23,000 was borrowed on a five-year note. the partnership paid $2,070 in interest that was the amount owed for the year and paid $9,500 for a two-year insurance policy on the first day of business. compute net income for the first year for tri fecta.