X=12 because you would sub the 3 on both sides
        
             
        
        
        
Answer:
equation 15+8= 
solution= 23
Step-by-step explanation:
its ez
 
        
             
        
        
        
The answer should be A. 4.5
Because line x is just over half of the length of the line that is 8ft
        
             
        
        
        
Answer:
b. 9 units
Step-by-step explanation:
30/2 -6 = 15-6 = 9
 
        
                    
             
        
        
        
Well, the average of a sum of number is found by adding each given number and dividing that number by the amount of given numbers. 
Example: 5+4+3+8=20 
                and 20/4 = 5, the average of the numbers
Multiply 1.8 by 8.0 using this format:
1.8
x8.0
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Hope this helped