. Let F(x)=-7x-12 and g(x)=13-3x. What is f-g?

Step-by-step explanation:

Given F(x)=-7x-12 and g(x)=13-3x, we are to find the value of f-g

f-g = f(x)-g(x)

Substituting the given functions into the formula;

f(x)-g(x) = -7x-12 -(13-3x)

f(x)-g(x)  = -7x-12-13+3x

f(x)-g(x)  = -7x+3x-12-13

f(x)-g(x) = -4x-25

Hence the value of f(x)-g(x)  is -4x-25

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)