Answer:
2 and one half bottles can be filled.
Explanation:
Kami has 7 liters of water to fill the water bottles.
Each bottle hold 2.8 liters of water.
We will divide 7 liters by 2.8 liters to get the number of bottles.
The number of bottles she can fill =

= 2.5 bottles
2 and a half bottles can be filled.