Answer:
C.) 3.4 in.
Step-by-step explanation:
Because I did the test and got it right. 
 
        
                    
             
        
        
        
Answer:
A
Step-by-step explanation:
The lines cross or touch the X-Axis 4 times which means that there are 4 solutions.
 
        
             
        
        
        
To get -2 from 2, you would multiple by -1.
To get 2 from -2, you also would multiple by -1.
Ad infinitum.
So the common ratio is -1.
Hope this helps.
        
             
        
        
        
The two lines intersect at point B, hope this helps.
        
             
        
        
        
Let the full marks = x
Then, it would be: x*40/100 = 60
x = 6000/40
x = 150
Full marks will be 150