25 points for who can awnser this

What are the constants in this expression? -10.6+9/10+2/5m-2.4n+3m

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

Alex measured the length of an item to be 3.7 cm. the actual length is 3.5 cm. what is alex’s percent error?