Answer:
im not 100% but i think its
T= 2t-4+(t-4)+7
 
        
             
        
        
        
Answer:
2.7, or 2  , or
, or 
Step-by-step explanation:
 
        
             
        
        
        
Basically the line is 180° in total.
If one side is 129°
then the other side is 180 - 129 
which means x = 51°
        
             
        
        
        
Answer: 10 %
Step-by-step explanation:
Reduction is 
32.50 − 29.25 = 3.25 pound sterling
Reduction % is  
3.25/32.5 ⋅ 100 = 10%