Answer:
Try using an interest calculator 
Step-by-step explanation:
It's a life saver! 
 
        
             
        
        
        
Answer:
3.5
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Answer:
0.0078125
Step-by-step explanation:
If the probability of flipping a fair coin (mentally) correctly for 1 row is 0.5, then the probability of flipping it correctly for 2 rows is
0.5 * 0.5 = 0.25
for 3 rows: 0.5*0.5*0.5 = 0.125
...
For 7 rows:

 
        
             
        
        
        
I think the answer is D
Hope it helps
        
             
        
        
        
Answer:
the third one
Step-by-step explanation: