<span>A. 8,648,640 
B. 13 
C. 665,280
D. 4,324,320
</span>Assume you don't watch movies twice.
If you have 13 movies to pick from, then you have 13 choices for the first movie. Then, only 12 choices are left.  Do this until only 6 are left (13-7=6)
This equates to 

Therefore, the answer is A, 8,648,640 different ways.
Hope this helps!
 
        
        
        
Answer:
9,613
Step-by-step explanation:
 
        
                    
             
        
        
        
All of them have the same answer of -8 except the last one.
        
                    
             
        
        
        
Answer:
   49°
Step-by-step explanation:
The given information that BC=DC tells you triangle BCD is an isosceles triangle and that angle y is one of the two equal base angles. Then ...
   y + y + 82 = 180 . . . . . the sum of angle measures is 180 degrees
   2y = 98 . . . . subtract 82
   y = 49 . . . . . divide by 2
The measure of y is 49°.
 
        
             
        
        
        
So firstly, subtract x on both sides: 
Next, divide -2 on both sides, and your answer will be y = 1/2x - 3/2 , or the last option.