Answer:
The distinct arrangement Billie would see is <em>P(n,r)=P(4,2) =4! ÷ (4−2)! = 12</em>
Step-by-step explanation:
<em>From the question, we recall the following:</em>
<em>Blue = 2, red =1 green =1</em>
<em>The way this can be solved for which Barry can arrange the wooden shaped blocks is applying the method called permutation</em>
<em>So,</em>
<em>4 permutation 3 = P(n,r)=P(4,3) =4! ÷ (4−3)! = 24</em>
<em>The ways Billie's would see the permutation arrangement is 4 permutation 2</em>
<em>With the expression given as</em>
<em>P(n,r)=P(4,2) =4! ÷ (4−2)! = 12</em>