13 ft is the right answer
        
             
        
        
        
Answer: supplementary, complementary, linear pair 
Step-by-step explanation:
 
        
             
        
        
        
Step-by-step explanation:
a=16
r=3
48/16=3
144/16=3
 6th term
=ar^(n-1)
= 16(3)^(6-1)
=3888
 
        
             
        
        
        
X - 13 < ( with a line under the symbol) 39
another term x - 13 < or = to 39