Carlos had $20 before he bought 4 bottles of water. The bottles of water cost d dollars each. Which expression represents how much money Carlos has after buying the
bottles of water?

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