<span>B. equal and in opposite directions</span>
        
                    
             
        
        
        
Answer:
the correct answer is practicing refusal strategies can help students stay sober
Explanation:
 
        
             
        
        
        
Answer:
21 miles
Explanation:
3 miles an hour for 7 hours 
Its simply 7m*3m/hr=21 miles
 
        
             
        
        
        
The similarity is that they both are types of bonds in molecules. 
Ionic bonds are between a metal and a nonmetal. 
Covalent bonds are between two nonmetals.