Future Business Leaders of America (FBLA) Business Calculations Practice Test

To determine the due date for a 90-day note dated August 13, it is essential to count 90 days from the start date accurately. Starting from August 13, the calculation includes the full days in each following month until reaching a total of 90 days.

Here's how the calculation unfolds:

1. **August 13 to August 31**: From August 13 to August 31, there are 18 days left in August (31 - 13 = 18).

2. **September**: September has 30 days, which adds to the count.

3. **October**: October has 31 days to be counted as well.

Now, let's sum it up:

- Days remaining in August: 18

- Days in September: 30

- Days in October: 31

By adding these together:

18 (August) + 30 (September) = 48 days by the end of September.

Continuing into October, 90 days total minus 48 days means 42 more days must be counted in October.

Counting 42 days starting from October 1, we go through October:

- October has 31 days, so by the end of October, we reach day 31,