Answer:
45% of the people have a university diploma.
Step-by-step explanation:
See the attached file.
 
        
             
        
        
        
The answer is:  [C]:  " 3 " .
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Explanation:
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         4x - 1 = 2x + 5 ;  Solve for "x" ; 
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 Subtract "2x" from each side of the equation; and add "1" to each side of the equation:
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       4x - 1 - 2x + 1 = 2x + 5 - 2x + 1 ;
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          2x = 6 ;
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Divide EACH side of the equation by "2" ; to isolate "x" on ONE side of the equation;  and to solve for "x" ;
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          2x / 2  =  6 / 2 ;
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               x  =  3 .
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The answer is:  [C]:  " 3 " .
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Answer:
<h2>The fourth graph, from left to right, is the correct answer.</h2>
Step-by-step explanation:
The given piecewise function is

Notice that the domain of the function specifies that, from zero to three, the function represents a decreasing (because the variable is negative) straight line. When the function is defined from 3 to infinite, the function is a constant of 5.
<em>So, the right graph must shows first a decreasing line, where the initial point is solid and the final point is empty, as the fourth fraph (from left to right), then it must show a horizontal line with an initial point solid.</em>
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Therefore, the fourth graph, from left to right, is the correct answer.