Answer:
x is 30 because 4*30 is 120 and minus 2 is 118
 
        
             
        
        
        
Answer: $180
4ft + 5ft + 4ft + 5ft = 18ft
18 x 10 = 180
        
                    
             
        
        
        
Answer:
Option C i.e. 2 and 9, constants have a fixed value is a correct option.
Step-by-step explanation:
In algebra, a constant is basically a fixed value.
Sometimes, a constant is a number for a letter such as a, b, or c for a fixed number.
For example: in ''2x+7=3'', 7 and 3 are constants.
- <em>Please note that the number with variable x in the term is a coefficient.</em>
 
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In our case:
Given the equation

Therefore, 2 and 9 are constants, having a fixed value.
Thus, option C i.e. 2 and 9, constants have a fixed value is a correct option.
 
        
             
        
        
        
Answer:
Mean 6.25
Median 5
Step-by-step explanation:
Youre welcome
 
        
                    
             
        
        
        
Answer: x = 27
Step-by-step explanation:
2x+3x+45=180º because all of the angles of a triangle add up to 180
5x=180-45
5x=135
x=135/5
x=27