The answer is a. $35. First you multiply 25 by .40. Then you add the product to 25.
        
             
        
        
        
The answer is C because 100 doesn’t change but 12 is dependent on the number of people.
        
                    
             
        
        
        
Elga is 20 years old and Alvin would be 5. Hope this helped.
        
             
        
        
        
The equations woould look like this 
a=2000(1+.0225/12) to the 12th power 
b=2000(1+.03/12) to the 12th power 
but i cant find the answer cuz i have no calculator sorry but i hope i still helped.
        
             
        
        
        
(1) You can see that the 6 is being added to both sides.
You are trying to make both sides equal by adding 6, so it would be the Addition Property of Equality. 
(2) 4 is being divided into both sides. 
It would be the Division Property of Inequality. (you are dividing by 4 to make both sides equal)
"B" is the answer.
I hope this helps!
~kaikers