What was the average cost per day if Al spent $105.00 on lunch over two weeks?

To calculate the average cost per day based on the total amount spent and the total number of days, you start by determining the total number of days in two weeks. There are 14 days in two weeks.

Next, you take the total amount spent, which is $105.00, and divide it by the total number of days (14). The calculation would look like this:

Average cost per day = Total amount spent / Total number of days

Average cost per day = $105.00 / 14

Carrying out this division gives you approximately $7.50. This result indicates that over the two-week period, Al's average spending on lunch per day was $7.50. Hence, the option that states $7.50 as the average cost per day is correct. It effectively reflects the division of total expenses by the number of days considered, providing a clear measure of daily spending over that time frame.