Washington DC has a land area of 68 mi.² and a population of 570,000 people. what is the number of people per square mile in Washington DC rounded to the nearest hundred?
I am not quite sure, but isn't this division? If so, 570,000/68 is around 8352. If we rounded that to the hundred, that means everything behind it would be zero. If the one behind it is 5 or larger, the number goes up one, and the numbers behind it go to zero. So... 8400? If there is any hidden trick, I don't know of it.