If your front lawn is 15.0 feet wide and 20.0 feet long, and each square foot of lawn accumulates 1450 new snow flakes every minute. How much snow

If your front lawn is 15.0 feet wide and 20.0 feet long, and each square foot of lawn accumulates 1450 new snow flakes every minute. How much snow (in kilograms) accumulates on your lawn per hour? Assume an average snow flake has a mass of 2.00mg.