Someone please help me?

you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)

if you're trying to figure out how much each ounce cost it would be 0.20

cents each ounce

7 is the median   7.875 is the mean

step-by-step explanation:

3,4,5,6,8,11,13,13

3 3 6, because in every triangle the longer side is always shorter than the sum of the other two