Which graph shows a system of equations with one solution?

Find the rate of change for the situation.you run 7 miles in one hour and 21 miles in three hours.

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

Me i'm timed right now! there's 4 answer