Victoria is choosing between a standard Honda Civic for $17,350 or a hybrid Civic for $20,875. She calculates her annual cost of ownership including payments but not including gasoline to be $5000 for the standard and $5800 for the hybrid. The standard Civic will cost Victoria 12c/mile for gasoline, while the hybrid will cost her only 7c/mile. How many miles must Victoria drive in a year before the hybrid vhicle becomes more cost efficient to her? Contributed by Paul R. McCright, University of South Florida.