The answer would be C to this question. 
        
             
        
        
        
<span>5(x + 1) = 4(x + 8)
Use distributive property
5x+5=4x+32
Subtract 4x from both sides
x+5=32
Subtract 5 from both sides
Final Answer: x=27</span>
        
             
        
        
        
1) Rational numbers are the numbers which can be expressed as the fraction.
In mathematical form, you can say: anything like: p/q  (where, q≠ 0)
2) An Irrational number is the number which can't be expressed in the form of fraction, it repeats upto infinite digits.
Hope this helps!
        
             
        
        
        
6*6=36.....................
        
                    
             
        
        
        
The first and the second one. 
-2*-2=4
Absolute value of -4 is 4