Answer:
30°
Step-by-step explanation:
∠A + ∠B + ∠C = 180
∠B = ∠A + 20
∠C = 2 * ∠B
<A + (∠A + 20) + (2 * ∠B) = 180
<A + (∠A + 20) + (2 * (∠A + 20)) = 180
<A + (∠A + 20) + 2∠A + 40 = 180
4∠A + 60 = 180
4∠A = 120
∠A = 30
 
        
                    
             
        
        
        
Answer:
4. 0 + 1 = 1
Step-by-step explanation:
since 2/9 is a bit small 
and 
since 10/11 is almost whole
 
        
                    
             
        
        
        
Answer:
r = 8
Step-by-step explanation:
The common ratio r of a geometric sequence is
r =  =
 =  = ..... =
 = ..... = 
Then
r =  =
 =  = 8
 = 8
 
        
             
        
        
        
Answer: Rate of A: 5/6 
Rate of B: 3/5 
A has a higher rate of change
Step-by-step explanation: You calculate slope/rate of change by determining the rise over the run. The rate of change in A is 5/6x, this is bigger than the slope of B. 
 
        
             
        
        
        
Answer:
see explanation for number line\ $29$
Step-by-step explanation:
this is the answer guys.