Write 2 9/10 as an improper fraction.

pls hurry!
and pls explain how to do it

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 you convert 1.27 to a percentage

Prove that quadrilateral is a rhombus.