To determine how many months it will take Eva to save for her $1,300 vacation, we can set up the equation based on her initial deposit and the monthly savings:
- Initial deposit: $500
- Monthly savings: $100
- Total savings goal: $1,300
We can calculate how much more money Eva needs to save beyond her initial deposit:
\[ \text{Amount needed} = \text{Total savings goal} - \text{Initial deposit} = 1300 - 500 = 800 \]
Next, we need to find out how many months it will take her to save the additional $800 at a rate of $100 per month:
\[ \text{Months needed} = \frac{\text{Amount needed}}{\text{Monthly savings}} = \frac{800}{100} = 8 \]
Therefore, it will take Eva 8 months to save for her vacation.
The correct response is: 8 months