40 + 2x - 30 + x + 20 = 180
3x + 30 = 180
3x = 150
  x = 50
m<B = 2x - 30
m<B = 2(50) - 30
m<B = 100 - 30
m<B = 70
        
             
        
        
        
Step-by-step explanation:
1/2(6x+1/2)=0
3x+1/4=0
3X=-1/4
X=3(-1/4)
X=-3/4
OR
X=-.75
 
        
                    
             
        
        
        
Answer:
1.25
Step-by-step explanation:
15/12
 
        
             
        
        
        
Answer:
The formula to find the nth term of the given sequence is 54 · 
Step-by-step explanation:
The formula for nth term of an geometric progression is : 

In this example, we have  = 36 (the first term in the sequence) and
 = 36 (the first term in the sequence) and 
r =  (the rate in which the sequence is changing).
 (the rate in which the sequence is changing). 
Knowing what the values for r and  are, now we can solve.
 are, now we can solve. 
 =
 =  = 54 ·
 = 54 · 
Therefore, the formula to find the nth term of the given sequence is
54 · 
 
        
             
        
        
        
108 is the answer for this question