The rate to rent a small moving van is $30 per day, plus $0.25 per mile. the sparkling appliance company rented a van because it needed an extra delivery vehicle for two days. the van cost $390. how many miles was it driven?

Total rental cost = $390 = 2($30/day) + ($0.25/mile)x     (x=number of miles)
                                                                                          330
Then 390 = 60 + 0.25x     =>    330 = 0.25 x    =>   x =
                                                                                           0.25

x comes out to 1320 miles.