I know one of them 3 and 4
        
             
        
        
        
Eradicate means like get rid of!
        
                    
             
        
        
        
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nobody will answer thqt right 
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Answer:
The hyphen ‐ is a punctuation mark used to join words, and to separate syllables of a single word. The use of hyphens is called hyphenation. 
1) thirty-one 
2) pre-columbian 
3) high-spirited 
4) well-known 
5) post-1917 
6) high-backed, brightly-coloured 
7) ten-year plan, poverty-stricken 
8) twenty-five, all-american, video-recorders 
do the last one ur self bro it ain't hard, u got this!
Explanation: