All of my teachers have told me that everyone remembers things best in groups of seven. so I would suggest to pick a continent and start in a corner and spend a couple of days studying  seven countries in that area. also quiz your self every once in a while for extra help.
I hope this helps you
        
             
        
        
        
Answer:
the answer is C. lake Texoma
hope this helps
 
        
             
        
        
        
Answer:
120   i hope this helps!   :)
Step-by-step explanation:
hexagon is 720°.
Internal angle (degrees): 120°
pic below
 
        
             
        
        
        
Answer:
The new cost is $ 2.34 and sales tax is .14.  Total cost is $2.48
Step-by-step explanation:
1.80 x 1.3 = 2.34
2.34 x .06 = .14
Add the two together for the total