Answer:
B. 4
Step-by-step explanation:
Whole numbers are divisible by 4 if the number formed by the last two individual digits is evenly divisible by 4.
 
        
                    
             
        
        
        
Concentric as they have same center
        
             
        
        
        
Answer:

Step-by-step explanation:
Given the formula;

We want to solve the given formula for r.
Multiply both sides by 


Take square root of both sides






 
        
             
        
        
        
Since s and t are complimentary, that means ∠s + ∠t = 90
From the picture, we also know that ∠t + ∠LGM = 90
Set them equal to each other:
∠s + ∠t = ∠t + ∠LGM, solve:
∠s = ∠LGM
Now using the fact that tangent = opposite/adjacent:
tan (∠s) = 
tan (∠s) = 
Set them equal to each other to get:
 =
 = 
Solve:

Part B:
Using tan (∠s) = 
We get:  meters
 meters
Hope that helps!
 
        
             
        
        
        
Answer:
number 3 or 2
Step-by-step explanation: