To model the relationship between the number of months \( x \) and the total amount of money \( y \) in Oliwia's account, we start with her initial deposit and then account for the interest earned each month.
- The initial deposit is $3,000.
- She earns $3 in interest each month.
Thus, the total amount in the account after \( x \) months can be modeled with the equation:
\[ y = 3x + 3000 \]
where \( y \) is the total amount of money in the account and \( x \) is the number of months.
So the correct response is:
\[ y = 3x + 3,000 \]
Hence, the correct answer is:
y = 3x + 3,000, where \( x \) is the number of months and \( y \) is the total amount of money Oliwia will have in her account.