States are the most numerous in North America. There are 50 of them. 
        
             
        
        
        
Answer:
Most effective - Practice quiz
Second most effective - Interleaved practice 
Moderately effective - Highlight
Moderately effective - Keyword mnemonics
Explanation:
 
        
             
        
        
        
Answer:
study, and dont freak out. peppermint is good it helps focous.and chew mint gum
 Explanation: