3/12 ; 1/6 ; 1/3
Adam must first get the least common multiple of each denominator.
12 : 12, 24, 36
  6 :  6, 12, 18
  3 :  3, 6, 9, 12
12 is the least common denominator. 
We, then, multiply each denominator by a number that will produce 12.
12 x 1 = 12
6 x 2 = 12
3 x 4 = 12
Each number multiplied to the denominator must be the number used to multiply each numerator.
3/12 * 1/1 = 3/12
1/6 * 2/2 =   2/12
1/3 * 4/4 =   4/12
Since they now share a common denominator, the numerator will become the basis of the fraction's value. The greater the numerator, the greater the fraction's value.
Fractions in order from least to greatest = 2/12 ; 3/12 ; 4/12
Substitute each fraction with its original fraction: 
2/12 ⇒ 1/6   : least
3/12 ⇒ 3/12 : middle
4/12 ⇒ 1/3   : greatest
        
             
        
        
        
4 outcomes, 
Heads - Heads 
Heads - Tails 
Tails - Tails 
Tails - Heads
With every coin added the amount of outcomes is multiplied by two
        
             
        
        
        
Answer:
B
Step-by-step explanation:
 
        
             
        
        
        
A square has both parallel sides 
being the top and bottom 
but also both the sides 
AND so does a PARALLELogram 
BUT a square has ALL right (90 d) angles 
and a parallelogram does NOT 
ALSO . . . . . SUMMARY . . . . .  
The sides of a square are parallel 
and all the angles equal 360 degrees, 
so it's a parallelogram. BUT a 
parallelogram is NOT a square 
because a squares angles need to be 90 degrees.
does that answer your question?