On first day you receive 1 cent on the second day 2 cents on the third day you get 4 cents and so on for 28 days. How much would you expect to receive on the last day of the month ?

Answer 1

http://www.jiskha.com/display.cgi?id=1156200567

http://www.jiskha.com/display.cgi?id=1338408891

http://www.jiskha.com/display.cgi?id=1273021821

Answer 2

first day 2^0, second day 2^1, third day 2^2 and so on...
until the last day the money you expected to receive:
2^0+2^1+2^2+...+2^27=268435455 cents