Sequences: sort and solve
recording document
scenario
a. mallory's new year resolution is to become a better runner. due to the frigid
michigan temperatures and her extreme commitment to her studies, mallory is
unable (or unmotivated) to start working on her goal until school gets out. on
june 1st, she starts by running 15 minutes and every day after that she adds 5
minutes to her run.

write an explicit formula and a recursive formula