Maria's swim team consists of 6 sixth graders, 15 seventh graders, and 9 eighth graders. What is the probability that the captain will be an eighth grader? ( the total students go on the bottom of the ratio, the total number of 8th graders go on the top...Reduce if possible)

b. would be the answer : )

step-by-step explanation:

step 1: add -16x to both sides.

16x−4y+−16x=64+−16x  

−4y=−16x+64

step 2: divide both sides by -4.

−4y /-4 = -16x + 64/-4

answer:   y=4x−16

hope i'm right

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)