X=7
Explanation: 
A triangle equals 180°, and they gave us one length already, and it says the one arm of the triangle is equal to the other so we know that the third angle is going to be the same as the second angle. 
180=90+(6x+3)+(6x+3) 
Combine like terms 
180=96+12x 
Subtract 96 from both sides 
84=12x 
Divide 12 by both sides 
7=x 
Now check it, 
90+(6*7+3)+(6*7+3)
90+(45)+(45) =180
        
             
        
        
        
It is False.
If a property is commutative in subtraction it means:  x - y    is the same as y - x.
For example    5 - 3 = 2,  but 3 - 5 = -2  so subtraction is not commutative.
But 5 + 3 = 8   ,   is the same as 3 + 5 = 8.
Addition is Commutative, but Subtraction is not commutative.
So the statement that subtraction of whole numbers is commutative is False. 
        
             
        
        
        
Step-by-step explanation:
Given inequality is  .
.
To graph that inequality, first we need to graph the line  . Then shade it for the inequality symbol <.
. Then shade it for the inequality symbol <.
Graphing line can be done using two points.
plug x=0 into  , we get:
, we get:

Hence first point is (0,2)
Similarly plug any random number for x say x=4, we get:

Hence first point is (4,5).
Now we just need to graph both points and join them by a dotted line. because we have < not <=.
Next part is to test for shading.
Which can be done using any test point which is not on the given line. Say (0,0)
plug x=0,y=0 into  .
.


0<2
which is true, hence shading will be in direction of test point (0,0).
Hence final answer will be the choice which looks like the graph attached below;
 
        
             
        
        
        
The answer to the question is C