Last summer, Scott's family rented an RV. The rental fee allowed them to use the RV for 7 days. Scott's parents paid an additional $45 for the Cozy Camp upgrade, which included a grill to use for the duration of their trip. Scott's family paid $829 in all. What was the rental cost of each day they used the RV?

Answer 1

The total cost of the RV rental without the Cozy Camp upgrade was $829 - $45 = $<<829-45=784>>784.
The cost of each day they used the RV was $784/7 = $<<784/7=112>>112. Answer: \boxed{112}.