To join Karate Klub, David must pay a monthly fee of $25 and an initial fee of
$200. If he chooses Kool Karate, he must
pay an initial fee of only $100 but
$35/month.
a) After how many months is the cost the
same at either karate club?
b) If David plans to try karate for
6 months, which club should he join?
c) If David decides to do karate for a year,
which club should he join?