Answer:
b. cosx + 6 sinx
Step-by-step explanation:

 
        
                    
             
        
        
        
An equivalent ratio would be 7:10 or 70:100 or 42:60 and so on...
        
             
        
        
        
Answer:
-3/2
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
29/30
Step-by-step explanation:
first, we must make sure they have the same denominator! 
2/3 x 10/10 = 20/30
3/10 x 3/3  = 9/30
20/30 + 9/30 = 29/30