Answer:
1.)  y= 3
2.)  y = 3/4 x -3
Step-by-step explanation:
 
        
             
        
        
        
Answer:
A fixed cost: Does not change with changes in the volume of activity within the relevant range
Step-by-step explanation:
Fixed Cost:
In economics, a fixed cost in a specified period of time does not change with respect to an increase or decrease in the production of goods or services. In contrast, the variable cost changes in proportion to changes in production of goods or services.
Examples of Fixed Cost:
Salaries, Rents, insurance payments, taxes, some utilities etc
 
        
                    
             
        
        
        
Please provide more information. You need to add the sides of the polygon to find the perimeter.