Step-by-step explanation:
........4x-y=11........
 
        
             
        
        
        
About 100. (Im not quite sure)
 
        
                    
             
        
        
        
That would be false because parallel lines don't intersect. But i can if one is straight and the other is Curved
        
             
        
        
        
Answer:
Following are the solution to this question:
Step-by-step explanation:
Using formula:

In question (1):

In point a:

In point b:

                  
In question (2):

In point a:

In point b:

                  
The 3 question is incomplete, that's why it can't be solved.
 
        
             
        
        
        
Answer:
 Multiplay 30 by 5 Then multiply five-by-five then Multiply 20 by 5 Then take away your answer