How much do you have when you take 1 penny and double it for 30 days?

If you start with 1 penny and double it every day for 30 days, you would have 2^30 pennies by the end of the month. This equals 1,073,741,824 pennies, which is $10,737,418.24. Doubling the amount each day leads to exponential growth, resulting in a substantial sum by the end of the period.