The answer is 10 you see 6 people are in both of the classes so you have to subtract 6 from the 12 and 16 12+16-6=22 
32-22=10
        
             
        
        
        
Answer:
(-3, 13)
Step-by-step explanation:
The transformation that moves a point 4 left and 8 up is ...
  (x, y) ⇒ (x -4, y +8)
The transformation that reflects a point across the y-axis is ...
  (x, y) ⇒ (-x, y)
Applied after the translation, the transformation of ∆ABC becomes ...
  (x, y) ⇒ (-(x -4), y +8) = (4 -x, y +8)
Then point A gets moved to ...
  A(7, 5) ⇒ A'(4 -7, 5 +8) = (-3, 13)
 
        
             
        
        
        
Answer:
114 degrees
Step-by-step explanation:
The formula to find the measure of all angles in a regular polygon is  , where n = total number of sides.
, where n = total number of sides. 
Thus, we substitute n for 10, and you get:

If the shape is a regular polygon and it has ten sides, meaning all sides are equal, then all you do is divide 1440 by 10, to get the final answer of 114. 
A central angle in a regular ten-sided polygon would be 144 degrees. 
 
        
             
        
        
        
-6x^4-7x^2+5x-10. hope this helps ! :)
        
             
        
        
        
The answer is: 8 red marbles! 
This is because the equation can be written out like this
Blue to red - 3:2 
Now it is, blue to red - 12:x 
We have to think, what is the difference from the first equation to the second. We know the number 3 times 4 = 12, so we would do the same for the red, 2 times 4=8
If this helped, give me brainliest :)