Help please I'm begging

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

This is so hard and it’s for a test

#7. m is the midpoint of pq, the diameter of the circle o is 13in. and rm = 4in. find pm find pq