Total number of marbles=5+3+4=12
Probability of picking a red marble =5/12
The function of the polynomial is (b) 
From the graph, we have the following highlights
- The graph crosses the x-axis at x = -1 and x = 3
- The graph touches the x-axis at x = -2
The above highlights mean that:
- The function has a multiplicity of 1 at x = -1 and x = 3
- The function has a multiplicity of 2 at x = -2
So, the function of the polynomial is:

Assume a = 1.
So, we have:

Multiply

Hence, the function of the polynomial is (b) 
Read more about polynomial graphs at:
brainly.com/question/8878887
Use Cymath it helps and give u the answer
A(b-c)=d solution is number 2. Attachment added
I think the sabers are X=2 and X=-2