Answer:
b
Step-by-step explanation:
 
        
             
        
        
        
Answer:
The cost increase for each square of carpet by 12.
Step-by-step explanation:
The given function is

It is a slope intercept form of the line

Where m is the slope and b is y-intercept.
Therefore the slope of given function is 12 and the y-intercept is 50.
It means the initial ot fixed cost of the carpet is 50 and the cost increased by 12 for each square of carpet.
 
        
             
        
        
        
⅔ and 8/12 form a proportion.
        
             
        
        
        
Answer:
1032x176x67x890x30x6x8
1032×176×67×890×30×6×8x^6
1.56^13×x^6