The emissions per capita measurement is a better because it shows the number of people divided by the emissions.
<h3>What is the difference between total emissions and emissions per capita?</h3>
The emissions per capita show the emissions per each citizen or inhabitant, while the total emissions show only the emissions of the country.
<h3>Which one is better?</h3>
The per capita gauge is better because whether a country is polluting more or not depends on how much each citizen pollutes. This information is useful to create laws that reduce pollution.
Learn more about pollution in: brainly.com/question/23857736
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[Add] 1.
-9h = 30 + 15
[Simplify] 2.
-9h = 45
[Divide] 3.
h = -  45/9   ( A negative Divide)
[Answer] 4.
h = -5
 
        
                    
             
        
        
        
Answer:
(-1, 0), (2, 0), (3, 0)
Step-by-step explanation:
x-intercept of a line is defined by a point where y = 0.
So the point in the form of (x, 0) will be the x-intercept of the given continuous function.
From the table attached, 
For x = -1, f(-1) = 0
For x = 2, f(2) = 0
For x = 3, f(3) = 0
Points (-1, 0), (2, 0) and (3, 0) are the x-intercepts of the continuous function f(x).
 
        
             
        
        
        
Answer:

Step-by-step explanation:

We have:
 <em> subtract 7a from both sides</em>
          <em> subtract 7a from both sides</em>

 <em>add 3 to both sides</em>
           <em>add 3 to both sides</em>

 
        
             
        
        
        
To find his age 4 years ago, you need to subtract 4 from his current age.
 His current age is Y, so his age 4 years ago is: y - 4