I think 10 is the answer
HOPE THIS HELPS
To do this, we first want to see how many participants there are in total by adding both males and females.

Now we know that there were 220 total participants, but only 121 were females.
This allows us to set up the fraction 121/220= the percent female.

or 55%
X=1, x=-7 would be the correct answer.
The answer would be c i think but i could be wrong i was never good at box and whisker plots