Answer:
it would be b becuse that shows how you are able to get the answer 
 
        
             
        
        
        
There are 12 Nickels, 9 Quarters, and 15 Dimes.
        
             
        
        
        
Answer:
The reasoning is  a deductive. 
   The reason is because the pattern of  thought is logical, here, scientific methods ( i.e mathematically obtaining and comparing the density of the coin and the  gold ) are used to support the conclusion.
Step-by-step explanation:
Gnerally the reasoning is  a deductive. 
   The reason is because the pattern of  thought is logical and scientific methods (eg mathematical equation (formula for density)) are applied to arrive at the  conclusion.
 
        
             
        
        
        
Answer:
A=4
B=3.5
C=4.5
Step-by-step explanation:
count the squares divide by 4