Answer:
52%
Step-by-step explanation:
First we have to find the total:
5 + 8 + 12= 25
Now we have to add how many red and how many blue marbles.
5 + 8 = 13.
Now you can tell that 13 > 12 so we can predict that the answer is 52%
However, lets go ahead and divide 13 from 25
13/25 = .52
This means that the answer is 52%!
~<em>CaityConcerto</em>
