Of the 800 participants in a marathon 120 are running to raise money for a cause how many participants out of 100 are running for a cause

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

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

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.