Answer:
   D  Numbers that can be written as fractions
Step-by-step explanation:
A <em>rational</em> number is one that can be written as a <em>ratio</em>: a fraction with integer numerator and denominator.
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The term "decimal" as used here is sufficiently non-specific that we cannot seriously consider it to be part of a suitable answer. A terminating or repeating decimal will be a rational number. A non-terminating, non-repeating decimal will not be a rational number.
While integers and whole numbers are included in the set of rational numbers, by themselves, they do not constitute the best description of the set of rational numbers.
 
        
             
        
        
        
The answer: x is equal to 50
        
                    
             
        
        
        
This is the graph of  1/x moved 4 units to the left 
so its f(x) = 1 / (x + 4)
C
        
                    
             
        
        
        
The answer is B. (6x + 4)(x - 1). I hope this helps!