It is D, that is because A - C are not terminating decimals therefore only leaving D
        
             
        
        
        
Answer:
   12n -5 ≤ 55
Step-by-step explanation:
12 times a number (represented by n) is 12n.
"Decreased by 5" means 5 is subtracted from the product, giving 12n-5.
"Is no more than 55" means "is less than or equal to 55". 
Then the expression written using math symbols is ...
   12n -5 ≤ 55
 
        
                    
             
        
        
        
Answer:
286 cm.
Step-by-step explanation:
You add up the two sections, since it is implied that there are no intersection between the two lengths.
178 + 108 = 286 cm.
 
        
             
        
        
        
One polynomial identity that crops up often in various areas is the difference of squares identity:
A2-b2=(a-b) (a+b) 
We meet this in the context of rationalising denominators.
        
             
        
        
        
29 = 4 + .75b
subtract 4
25 = .75b
divide .75
b = 33.3333333
b = 33 braids