Samantha wants to add at least 40 fish to her tank. She can't use more than 20 of Fish A. She also can't use more than 30 of Fish B. Fish A cost $4 each and Fish B cost $3 each. How many of each type of fish should she buy in order to minimize the cost?

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