Question isnt clear but, the diameter would be 25cm, the radius 12.5, and if you were trying to find the area of a circle it would be 491cm squared
In Chekhov's "The Bet," the banker and the lawyer both learn the futility of their wager, as they have found that life and its conditions differ greatly from their more youthful perceptions. The lawyer learns that his sweeping statement that life on any terms is better than death...
I would go with d or a as my best guess
Racism hugely effects economically. Theres a thing called gentrification and white flight. Gentrification example is Hawaii. Hawaii is a brown state, but because of white people moving there the natives are forced to leave their homes. White flight is when a neighborhood is white, but has an increasing number of minorities moving into the area, and because of that, and the people not wanting diversity the white people leave, thats why its called white flight.
You can look into it a lot more but that majorly effects the US, in places like New York, New Jersey, Detroit, Hawaii, California etc