Ellen made 900 cupcakes for a fundraiser. She can make 50 cupcakes in an hour. She works on the cupcakes for 6 hours a day. How many days did she work on the cupcakes?

Solve the problem by making up an equation. a man could arrive on time for an appointment if he drove the car at 40 mph; however, since he left the house 15 minutes late, he drove the car at 50 mph and arrive 3 minutes early for the appointment. how far from his house was his appointment?