Itook a picture of 2 problems i need with can someone me

Can someone pls ! pls answer all. no explanation needed..

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

If your teacher tells you to do questions 6 through 19 in your math book for homework, how many questions is that