B) 7/10 
It is B because there are 7 out of 10 possibilities that you would get a number greater than 7 or an odd number.
        
             
        
        
        
Answer:
   10
Step-by-step explanation:

For x=2, this is ...
   5·2 = 10
 
        
                    
             
        
        
        
Boosting this so more people can see!!
        
                    
             
        
        
        
Answer: Look at the number of points where the graphs intersect each other...the points where the graphs of the functions cross each other are the solutions to the system. 
Upon looking, you should see 4 points where the graphs intersect, so there are 4 solutions to the non-linear system of equations. 
Step-by-step explanation: