You receive an allowance of $10 the first week of every month, and the
amount you receive doubles every week after that. Assume there are four
weeks to a month. How much would your allowance be after one month?
guess
You would get 10$ for the first week, 20 for the second week, 30 for the third week, and 40 for the fourth week. If you add that up all together you get 100$