Given triangle abc - triangle def, ab = 15, bc = 20, ac = 25, and
fe = 3x - 7, find x.
blank 1:

how do i set up the problem?

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)

i believe that the answer is

b. y-1=-2(x-4)

hope this !

1/4 is the answer if i recall correctly.