Answer:

Step-by-step explanation:
The compound interest formula is given by:

Where A(t) is the amount of money in the account after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per unit t and t is the number of years the money is invested or borrowed for.
For this problem, we have that:

The investment is compounded monthly. There are 12 months in a year. So 
The interest rate is 3%. So 
.
So
The amount of money in her account after t years is:



 
        
             
        
        
        
The length of the unknown side is 17.5
        
             
        
        
        
Area of parallelogram = bh 
3.5 x 2.3 
= 8.05cm
        
             
        
        
        
The answer is B.
Explanation:
If you divide exponents, you subtract the exponents.
        
                    
             
        
        
        
Line the decimal points up. Then add like you normally would, but put down the decimal directly where you have it lined up.