Afunction which is used to represent a problem, and which can be used to solve the problem, is called a
example: if a company produces x units of an item at a cost of $35 apiece, the function c = 35x is a of the total production cost.
hint: firsts 2 letters are mo

Model is the required word.

Step-by-step explanation:

Given : A function which is used to represent a problem, and which can be used to solve the problem.

We have to find : The given situation is called?

Solution :

A function which is used to represent a problem gives you a model .

As model is the representation of a problem which is used to solve a problem.

So, according to hint also the required word is model.

A function which is used to represent a problem, and which can be used to solve the problem, is called a model.  

Example: If a company produces x units of an item at a cost of $35 apiece, the function C = 35x is a model of the total production cost.                                                        

the answer is 5/3x+7/5y+7

answer: $201

step-by-step explanation: to get the answer, you first get 3 nieces that he sold and multiply it by 67 and get $201, so he earned $201 selling his nieces.