First you have to find out how many make a certain percent so..125/100=1.25 meaning that 1 person repsresent's 1.25%
So 22*1.25= 27.5% meaning 27.5% came from other comunities!
2an^2-1
I think I calculated the product
That would be the third option
Out of 15 marbles, 3 are yellow, which leaves 12 more marbles that are NOT yellow. 12/15 would be your answer
hope this helps
