Final answer:
The total amount deposited into the fund by Jess is $30, as it's the sum of two separate deposits: $10 today and $20 fifteen years later.
Step-by-step explanation:
The total amount deposited into the fund by Jess is the sum of the two separate deposits made at different times. The first deposit is $10 made today, and the second deposit is $20 made fifteen years later. When you add these two amounts, you get:
$10 (first deposit) + $20 (second deposit) = $30 (total amount deposited)
Therefore, the correct answer to how much has been deposited into the fund in total is $30.