The first thing you should do in this case is to compose both functions:
f (x) = x + 7
g (x) = 1 / (x-13)
Making the composition
f (g (x)) = (1 / (x-13)) + 7
f (g (x)) = (7 (x-13) +1) / (x-13)
Answer:
The domain of the function is:
x other than 13
(option 4)
Sorry if it's wrong, I tried
72 months=6 years
6×12=72
14 months 0% so evelyn be charged interest after 14 months
72-14=58 months evelyn be charged interest?