Brian is adding the lengths of wood posts that he has left from building a pen for his chickens. A photo of chickens is shown.

The lengths are 323, 214, and 213. Brian began with 20 feet of wood.

Write and then evaluate a fraction expression to determine how much wood he used for the pen.
Enter the correct expression in the box.

2 of 2
Simplify inside the parentheses, and then subtract.

Expression: $$

He used
feet.

The box plots show the distributions of the numbers of words per line in an essay printed in two different fonts.which measure of center would be best to compare the data sets? the median is the best measure because both distributions are left-skewed.the mean is the best measure because both distributions are left-skewed.the median is the best measure because both distributions are symmetric.the mean is the best measure because both distributions are symmetric