Answer:

7. 1.3

8. 2.7 kg or 2 7/10

Hope it helps! Thank u! Good Evening!

Solutions: (If you need lang naman..)

The word problem is asking for the volume of water in the bottle. Since the bottle holds 3.9 liters less water than the pail, you have to subtract it from the volume of water in the pail.  

Given:  

volume of water in the pail - 5.2 liters  

volume of water in the bottle - 3.9 liters less water than the pail  

Equation:  

5.2 liters - 3.9 liters = N  

Solution:  

5.2 - 3.9 = 1.3  

Final Answer:  

1.3 liters