Bạn An có khoản thu nhập là 400 000 đồng dùng để mua hai loại sản phẩm giải trí: sách (Ký hiệu là S) và đĩa nhạc CD (ký hiệu là D). Giá của sách là
Ps = 30 000đ/bộ sách, giá của đĩa nhạc là PD = 20 000 đ/đĩa. Tổng giá trị hữu dụng của
bạn An khi sử dụng hai sản phẩm này lần lượt là :
TU S = - QS2 + 10 QS
TU D = - 2QD2 + 20 QD
a. Xác định lựa chọn tối ưu của bạn An.
b. Tổng giá trị hữu dụng tối đa của bạn An là bao nhiêu?

Atlas manufacturing produces a unique valve, and has the capacity to produce 50,000 valves annually. currently atlas produces 40,000 valves and is thinking about increasing production to 45,000 valves next year. what is the most likely behavior of total manufacturing costs and unit manufacturing costs given this change? a. total manufacturing costs will increase and unit manufacturing costs will also increase. b. total manufacturing costs will stay the same and unit manufacturing costs will stay the same. c. total manufacturing costs will increase and unit manufacturing costs will decrease. d. total manufacturing costs will increase and unit manufacturing costs will stay the same.

Parks corporation is considering an investment proposal in which a working capital investment of $10,000 would be required. the investment would provide cash inflows of $2,000 per year for six years. the working capital would be released for use elsewhere when the project is completed. if the company's discount rate is 10%, the investment's net present value is closest to (ignore income taxes) ?

10.     lucy is catering an important luncheon and wants to make sure her bisque has the perfect consistency. for her bisque to turn out right, it should have the consistency of a. cold heavy cream. b. warm milk. c. foie gras. d. thick oatmeal. student d   incorrect