Answer:
Objective function (maximize)

Constraints
- Availabitily of salt: 
- Availability of herbs: 
- Availability of flour: 
Explanation:
This a linear programming problem. We have an objective function (in this case it is the profit) that we want to optimize, but complying with constraints (in this case, the availability of ingredients).
The objective function can be defined taking into account the profits of the two kind of chips:

The constraints can be expressed taking into account the amount of ingredients every unit of chip needs and stating that it has to be less or equal to the availability of this ingredient:
- Availabitily of salt:

- Availability of herbs

- Availability of flour

With these expressions the linear programming problem can be solved.
Answer:
D. Absolute Advantage
Explanation:
Absolute advantage represents an economics principle referring to the capability of a firm or a country or even an individual to manufacture or produce a larger quantity of a product or offer a greater quantity of a service than its competitors especially with the same amount of resource which in in reference to international trade is labour.
The absolute advantage for Russia in the question is that it has the only deposits of Yuksporite and using the same amount of labour input other countries would have used, Russia has the absolute advantage as the only manufacturer of goods that would come out of Yuksporite.
I think the answer you're looking for is 'D' if you're asking what productivity is in a generalized sense.
The appropriate action would be: C. <span>Thank the taxpayer, and explain that you cannot accept any payment for your services.
Government workers couldn't receive cash payment in any kind unless there is a necessary administrative purpose.
They could on the other hand, receives Gifts that held the value less than $ 20</span>