Car a gets 25 miles per gallon and costs $13,000. car b is a hybrid that gets 45 miles per gallon, but costs $25,000. assume you drive 15,000 miles per year and that gas will cost $4 per gallon for the foreseeable future. how many years will it take for car b's better fuel economy to outweigh its higher initial cost?

Aplane is taking off from bangladesh headed to new york city. at the same time, a plane from new york city is headed to bangladesh is also taking off. the plane bound to new york city is traveling at 600 mph, while the plane traveling to bangladesh is traveling at 400 mph. how far from new york city will the two planes meet if the distance between new york city and bangladesh is 8,000 miles?