1/3(9x) =3x
1/3(18) =6
3x+6-5
Then you do
-(x)=-x
-(3)=-3
5x-x-3 = 4x-3
4x-3=3x+6-5
4x-3=3x+1
x=4
        
                    
             
        
        
        
Answer:  
Step-by-step explanation:
<h3>
 Since the figure is not attached, below you can see a general explanation of the procedure to solve the exercise: </h3>
 For this exercise you can apply the following formula, which is used to calculate the area of a trapezoid:

 Where  "B" and "b" are the bases of the trapezoid and "h" is the height.
 So, substituting values into the formula and evaluating, you can find the area of  trapezoid-shaped region.
 Since the population in the trapezoid-shaped region is about 3,000 people, you can find the number of people per square mile dividing the population by the area of the region. 
 Then, the following expression represents the number of people per square mile in that region:
 
 
        
                    
             
        
        
        
Answer:
-2
Step-by-step explanation:
each number is being multiplied by -2 to get to the next number
 
        
             
        
        
        
The line passes through the origin and if it has a constant of variation of 3, so it represents a direct variation , Option A is the correct answer.
<h3>What is Direct Variation ?</h3>
When a quantity increases and the other quantity also increases , then those two quantities are said to be in direct variation.
It is asked in the question that which option depicts whether On a coordinate plane, a line goes through points (0, 0) and (1, 3) , represents a direct variation
As it is mentioned in the question that the line passes through the origin and if it has a constant of variation of 3, so it represents a direct variation.
To know more about Direct Variation
brainly.com/question/14254277
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