An algebra class has 20 students and 20 desks. for the sake of variety, students change the seating arrangement each day. how many days must pass before the class must repeat a seating arrangement?

The following account balances at the beginning of january were selected from the general ledger of fresh bagel manufacturing company: work in process inventory $0 raw materials inventory $ 28 comma 100 finished goods inventory $ 40 comma 600 additional data: 1. actual manufacturing overhead for january amounted to $ 65 comma 000. 2. total direct labor cost for january was $ 63 comma 400. 3. the predetermined manufacturing overhead rate is based on direct labor cost. the budget for the year called for $ 255 comma 000 of direct labor cost and $ 382 comma 500 of manufacturing overhead costs. 4. the only job unfinished on january 31 was job no. 151, for which total direct labor charges were $ 5 comma 200 (1 comma 300 direct labor hours) and total direct material charges were $ 14 comma 400. 5. cost of direct materials placed in production during january totaled $ 123 comma 700. there were no indirect material requisitions during january. 6. january 31 balance in raw materials inventory was $ 35 comma 300. 7. finished goods inventory balance on january 31 was $ 35 comma 400. what is the cost of goods manufactured for january?

Salt corporation's contribution margin ratio is 78% and its fixed monthly expenses are $30,000. assume that the company's sales for may are expected to be $89,000. required: estimate the company's net operating income for may, assuming that the fixed monthly expenses do not change.

Aproperty title search firm is contemplating using online software to increase its search productivity. currently an average of 40 minutes is needed to do a title search. the researcher cost is $2 per minute. clients are charged a fee of $400. company a's software would reduce the average search time by 10 minutes, at a cost of $3.50 per search. company b's software would reduce the average search time by 12 minutes at a cost of $3.60 per search. which option would have the higher productivity in terms of revenue per dollar of input?