Answer:
u should redder the reader about the 
formulas as it is a direct question 
 
        
                    
             
        
        
        
Answer:
Beatrice will accumulate $1230.72 at the end of the year.
Step-by-step explanation:
We can write:

 for deposits
 for deposits
The first month would have only the deposit reflected in her balance, then, expanding some steps of the calculation would yield:

A geometric series is given by:

Translating our series to the short form:

plugin in the values for the 12 month gives:

 
        
             
        
        
        
This is a geometric sequence of the form:
a(n)=ar^(n-1) in this case a=150, r=1.1
a(n)=150(1.1)^(n-1)   August is the eighth month so 
a(8)=150(1.1)^7
a(8)=292.307565
So you deposited $292.31 (to the nearest cent) in August.
        
             
        
        
        
Answer:
8.5
Step-by-step explanation:
w is 8.5 
 
        
                    
             
        
        
        
Answer:
tsa
Step-by-step explanation:
tsa of cube is 6a² 
so 
64cm²=6a²