Therese bought 10 bags of buai at K400 each. She paid K2 000 for vehicle hire,and spent K1 000 on other expenses. She sold 8 bags at K900 each and 2 bags at K700 each. Calculate her total expenses?

Total cost of buying 10 bags of buai = 10 bags x K400/bag = K4 000
Total expenses = K2 000 (vehicle hire) + K1 000 (other expenses) + K4 000 (cost of buying buai) = K7 000

Therese sold 8 bags at K900 each, earning 8 bags x K900/bag = K7 200
She also sold 2 bags at K700 each, earning 2 bags x K700/bag = K1 400

Total earnings = K7 200 + K1 400 = K8 600

Total expenses = K7 000
Total earnings = K8 600

Therese's total expenses were K7 000.

Therese's Expenses:

- Buai purchase: 10 bags x K400 per bag = K4,000
- Vehicle hire: K2,000
- Other expenses: K1,000

Total expenses = K4,000 + K2,000 + K1,000 = K7,000

Therese's Income:

- 8 bags sold at K900 per bag: 8 x K900 = K7,200
- 2 bags sold at K700 per bag: 2 x K700 = K1,400

Total income = K7,200 + K1,400 = K8,600

Therese's Profit/Loss:

- Income - Expenses = K8,600 - K7,000 = K1,600

Conclusion:

Therese made a profit of K1,600.