The Brainliest Answer!
As you get to see the question you want to answer.
Click on the question.
wait for the question to open.
Then click on The Box where it says "+ANSWER"  
So, as you know the answer, You can add it up there.
And remember, Two people is the maximum no. of person who can answer a single question.
Thank You :)
6 3 6
thnk u very mch
welcome :) and thanks for marking it as THE BEST