Find S13 for the following arithmetic series: a1 = 2 and a13 = 122

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

When you answer this can you explain

∆red ≅ ∆ by rule will give brainiest if possible