I need the answer and how you got it

Part a : solve -vp + 40 < 65 for v part b : solve 7w - 3r = 15 for r show your work .

Can someone, me with this.i really need with this

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