I need Help on These. Whoever answer's can you explain your answer step by step plz and thank you♥♥

If f(x)= 3x+6 which of the following is the inverse of f(x)

Ataxi company charges $2.25 for the first mile and then $0.20 per mile for each additional mile, or f = $2.25 + $0.20(m - 1) where f is the fare and m is the number of miles. if juan's taxi fare was $6.05, how many miles did he travel in the taxi? if juan's taxi fare was 7.65, how many miles did he travel in taxi

Corresponding angles are a. always b. sometimes c. never congruent