Darla is creating a family tree. She starts by writing down the names of her two parents. For each of her parents, she writes down the names of their two parents, and so on. After six generations, how many names has she written down, NOT including herself?

How much money does ron have left each month after his fixed expenses? ron graduated from college five years ago. he recently bought a house, but shares it with a housemate who pays him $800 a month for rent and utilities. ron is putting a budget worksheet together so he will have a better idea of where his money is going and where he can save. enlarge