PLEASE HELP ME I NEED TO ANSWER IF NOT I WILL FAIL THIS IS MY OER IS APRT OF MY TEST

What is the value with a place of tenths in 907.456 1) 0 2) 6 3) 4 4) 5

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

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?