Answer:
1st one
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
7
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
2.8
Step-by-step explanation:
ur welcome i hope this helps
 
        
                    
             
        
        
        
The answer is 9.5 ( rounded, answer is 9.486833)
        
             
        
        
        
Answer:
Step-by-step explanation:
Ths sum of angle S,T,U is 180°. So,
10x-5 + 2x+4 + x-14 = 180
SOlve for x, and then you can find angle S.