6
Like how

= 36
Square root does the opposite.
Edit: my mistake, it is 6
Plane, it contains tons of 2d points with no set beginning or end
1/2 / 4
which can be rewritten as 1/2 * 1/4 (i bet you learnt how to divide fractions ... if you didnt then comment and ill tell you the rules for dividing)
1/2 * 1/4 = 1/8
30% = 0.30
100 - 100(0.30) = 70
20% = 0.20
70 - 70(0.20) = 56
the answer is c
6 is your answer.
With box and whisker plot, the first quartile is where the box starts. In this case it’s 6. The median of this set is 8, represented by the line inside the box. The third quartile is where the box ends, 11 in this case.
The whiskers show the lowest and highest numbers of the data set.
Hope this helped. LMK if you have questions.