Answer:
   C. The relationship between two variables is linear when it is represented by a straight line and nonlinear when it is represented by a curved line.
Step-by-step explanation:
The definition of "linear" is "related by a straight line". The definition of "non-linear" is "not related by a straight line." One simply needs to understand the definitions in order to choose the correct statement.
 
        
             
        
        
        
Answer:
C- Based on the data, this is an example of causation
Step-by-step explanation:
This is because by him putting the ice cream into a freezing area, the ice cream remained frozen. Imagine if he put in in a warm area, it would melt. Hope this helps!
 
        
                    
             
        
        
        
Answer:
8m
Step-by-step explanation:
x = hypotenuse since they want the point of observation to the top of the tree
cos 60 = 4/x
x = 4 / cos 60
x = 8m
 
        
             
        
        
        
Answer:
#6 is 17 days
Step-by-step explanation:
This is how I answered it 
1) 2750 = 550 + 125x
2) subtract 550 from each side
 2750-550=2200 
 so the left over equation is: 
 2200 = 125x
3) divide each side by 125 to get x by itself
 2200÷125= 17.6
4) you are left with: x = 17 days
 
        
             
        
        
        
1 way : 10d + 2d 
another way: 5d + 5d + 2d