Why back tires are wearing so fast
Rear tires are wearing
Tire pressure too high, too many burnouts and donuts? The car is RWD, so the rear tires will wear out faster than the fronts. Rotate your tires more frequently, like every 5000 miles and the tires should wear more evenly.
As for stop burning out and rotate every 5000 miles...the burnouts are not happening. Enough of that...tires are not lasting 5000 miles to rotate..need a better answer..
Did you buy the car used? Salvage title?
Better questions with details get better answers.