kyra calculates that it will take 73 minutes to run 7 miles. she runs the distance in 98 minutes. what is kyras percent error.

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

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

Lee has $1.75 in dimes and nickels. the number of nickels is 11 more than the number of dimes. how many of each coin does he have?