Answer:
   C.  x > 3
Step-by-step explanation:
As long as you don't multiply or divide by any negative numbers*, <em>you can solve this the same way you would an equation</em>.
   3x +2 > x +8
   3x > x +6 . . . . . . subtract 2
   2x > 6 . . . . . . . . subtract x
   x > 3 . . . . . . . . . .divide by 2; matches choice C
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* The complete rule is "as long as you don't use any order-changing operations, ...". There are some functions you can apply to both sides of the inequality that will change the ordering. Multiplication or division by a negative number is only one of many. 
   1 < 2
   -1 > -2 . . . . . multiplication by -1 reverses the order
 
        
                    
             
        
        
        
Answer:
The total area is 45
Step-by-step explanation:
It's basically the same steps at the last problem
 
        
             
        
        
        
We can construct the function:

Where  or
 or  is ordinate and
 is ordinate and  is abscissa.
 is abscissa.
The function actually represents a line. Since it can have linear form.

Hope this helps.
r3t40
 
        
             
        
        
        
Answer:
x=2
Step-by-step explanation: 
This is an isosceles triangle you can tell by the two congruent/equal angles
angle A is congruent/equal to angle C by definition the two sides will be equal. 
x-4=3x-8
1. get all you x's on one side. by subtracting x from both sides you don't have to deal with dividing by negatives later on. 
x-x-4=3x-x-8
-4=2x-8
now you want to get x by itself so add 8 to both sides 
4= 2x
x is still not by itself so divide both sides by 2 
x=2