Tuition for one year at a state university is about $15,000. Diana would like to attend this university and will save money each month for the next 6 years. She has saved $2,400 and her parents will give her $5,600 for the first year of tuition. Which plan shows the minimum amount of money Diana must save to have enough money to pay for his first year of tuition?

To determine the minimum amount of money Diana must save to have enough money to pay for her first year of tuition, we need to consider her current savings and the amount her parents will give her.

Given:
- Tuition for one year: $15,000
- Diana's current savings: $2,400
- Amount her parents will give her: $5,600

We can calculate the remaining amount Diana needs to save by subtracting her current savings and the amount her parents will give her from the total tuition cost:

Remaining amount to save = Tuition cost - (Current savings + Parents' contribution)
= $15,000 - ($2,400 + $5,600)
= $15,000 - $8,000
= $7,000

Therefore, the minimum amount of money Diana must save to have enough money to pay for her first year of tuition is $7,000.