Answer:
1
Step-by-step explanation:
5/5=1
 
        
                    
             
        
        
        
Answer:
The brother would be 13
Step-by-step explanation:
14 - 6= 8
There's an 8-year difference
21 - 8= 13
 
        
             
        
        
        
Answer:
Directions - Identify the key components, create an exponential equation, then answer the questions.  
Exponential Form:  y=a\cdot b^{x},\ a\ is\ the\ \textit{starting}\ \textit{value},\ b\ is\ the\ base\ (rate).\y=a⋅b  
x
 , a is the starting value, b is the base (rate).  
In a small town, the stray dog population is rapidly increasing. there are currently 15 stray dogs, and it is estimated that the population will triple every year. How many dogs will there be after 1 year? 2 years? 3 years?
1) a =  15  
  4) Dogs after 1 years = 45  
  
2) b =  3  
  5) Dogs after 2 years =   135
  
3) Equation:    
y= 15 ×3x
  6) Dogs after 3 years =    
405
  
Step-by-step explanation:
 
        
             
        
        
        
Answer:
The sum is equal to 
Step-by-step explanation:
we know that
The formula to calculate the sum is equal to

In this problem
 -----> number of terms
 -----> number of terms
a1 is the first term

an is the last term

substitute

 
        
             
        
        
        
I think its 9 because 9 times 2 is 18 9 times 6 is 54 and 9 times 8 is 72