Answer:
We'll start by calculating the number of days between the two dates:
February 21 (start date) to October 11 (end date).
There are 6 months between these dates.
February has 28 days, March has 31 days, April has 30 days, May has 31 days, June has 30 days, July has 31 days, August has 31 days, September has 30 days, and October has 31 days.
Adding up the total number of days between the two dates is:
(28 + 31 + 30 + 31 + 30 + 3