Slove for X! Please help C: :D

An equation is shown below: 3(4x − 2) = 1 which of the following correctly shows the first two steps to solve this equation?

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

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)