What is the box-and-whisker plot for the data?
18 22 27 19 10 8 24 21

Second one

Step-by-step explanation: The median is 20, so it can only be the first or second one, but the highest number in the data is 27, and the highest number in the data of the first one is 30, so it must be the second one.

The dimensions of the rectangle with perimeter 108 and whose area is large as possible if the both values are the same number. For the rectangle to have maximum area, the dimensions should be equal.
Let the dimensions be x
thus the perimeter will be:
2(x+x)=108
2(2x)=108
4x=108
x=27
thus for the rectangle to have a maximum area the dimensions should be 27m by 27 m