Answer:
Step-by-step explanation:I belive that the 7x+22 needs to equal 50 because they opposite angles. Hope this helped a little and can get you started 
 
        
                    
             
        
        
        
It should take about 13.3 hours 
 
        
             
        
        
        
Y = 300 (miles) * x (independent variable)
I hope this satisfies you.
        
             
        
        
        
Answer:
you can use SSA to prove congruence. side DE and AB are congruent, and C and F are both right angles