485 ft x (1 mile / 5280 ft) x (1 hr / 105 miles) x (60 min / hr) x (60 sec / min)
= 3.15 seconds
105
If the 6x12 tiles are in inches, it will take two of them to cover a square foot. You will need 210 of them.
I assume you mean 12" x 12". That's a square foot, so 105 tiles cover 105 square feet.
It will take 252 minutes or 4 hours 12 minutes.
0.3896 second (rounded)
105 feet
7.5 seconds
0.3615702479338843 acres
It will cover about 8 sq.feet if you spread it one inch thick.
105 inches are 8.75 feet.
105 meters = ~344.5 feet
It is 3.44488189 feet.