Division expression for fraction 5/4 for is 4 divided by 4 which is .8
 
        
             
        
        
        
<u>Given</u>:
The measure of ∠ABD is (4x + 15)°
The measure of ∠DBC is (13x + 7)°
We need to determine the value of x.
<u>Value of x:</u>
Since, we know the property that every angle in a rectangle is 90°
Hence, the value of x can be determined by adding the two angles and equating to  90°
Thus, we have;

Substituting the values, we have;

               
                       
                           
Thus, the value of x is 4.
 
        
             
        
        
        
Answer:
I'm pretty sure it's A since B,C,and D wouldn't make sense. 
 
        
             
        
        
        
Rewrite in standard form using (h,k) to find the vertex.
(3,4) is the answer.