Answer:
l think the answer is B
Step-by-step explanation:
The eighth patern should give the result 81
 
        
             
        
        
        
9514 1404 393
Answer:
   16
Step-by-step explanation:
The altitude of the triangle is 12/21 = 4/7 of the marked side. If we assume that the marked sides are the ones that are corresponding, then ...
   x = (4/7)(28)
   x = 16
 
        
             
        
        
        
Answer:
1620
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
36
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Negative one,negative ten
positive seven,negative eleven