Jeremy is taking a photography class, but he doesn't own a camera. the class organizers will rent him a camera for $6 per day. jeremy can spend up to $50 for the class, but he has to pay $15 to register for the class as well as rent the camera. the number of days, d, that jeremy can rent the camera is represented by the inequality 6d + 15 < 50. how many days can jeremy rent the camera?
a.5
b.6
c.8
d.9
e.10